{"id":34507,"date":"2026-03-11T11:37:44","date_gmt":"2026-03-11T11:37:44","guid":{"rendered":"https:\/\/1grid.co.za\/knowledge\/?post_type=ht_kb&#038;p=34507"},"modified":"2026-03-11T11:37:46","modified_gmt":"2026-03-11T11:37:46","slug":"unable-to-send-emails-receiving-is-fine","status":"publish","type":"ht_kb","link":"https:\/\/1grid.co.za\/knowledge\/unable-to-send-emails-receiving-is-fine-how-to-fix\/","title":{"rendered":"Unable to Send Emails, Receiving is Fine (How to Fix)"},"content":{"rendered":"\n<p>If you\u00a0<strong>can receive but are unable to send emails<\/strong>, the issue is usually related to your\u00a0<strong>outgoing mail server (SMTP) configuration<\/strong>.\u00a0<\/p>\n\n\n\n<p>This guide will help you:&nbsp;<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li id=\"htoc-identify-why-sending-emails-fails\">Identify&nbsp;why sending emails fails&nbsp;<\/li>\n\n\n\n<li id=\"htoc-correct-your-smtp-settings\">Correct your SMTP settings&nbsp;<\/li>\n\n\n\n<li id=\"htoc-restore-normal-email-delivery\">Restore normal email delivery&nbsp;<\/li>\n<\/ul>\n\n\n\n<p>Most cases of being unable to send emails are caused by\u00a0<strong>simple configuration issues<\/strong>, such as incorrect ports or authentication settings.\u00a0<\/p>\n\n\n\n<p>By the end of this guide,\u00a0you\u2019ll\u00a0confidently diagnose and resolve\u00a0sending issues if they are due to the outgoing mail server configuration\u00a0without unnecessary support escalation.\u00a0<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1600\" height=\"600\" src=\"https:\/\/1grid.co.za\/knowledge\/wp-content\/uploads\/2026\/03\/1-grid-Images-for-KB-Articles-1000-x-600-px-3.png\" alt=\"Unable to Send Emails\" class=\"wp-image-34508\"\/><\/figure>\n<\/div>\n\n\n<div class=\"wp-block-ht-block-toc is-style-rounded htoc htoc--position-wide toc-list-style-plain\" data-htoc-state=\"expanded\"><span class=\"htoc__title\"><span class=\"ht_toc_title\">Table of Contents<\/span><span class=\"htoc__toggle\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"16\" height=\"16\"><g fill=\"#444\"><path d=\"M15 7H1c-.6 0-1 .4-1 1s.4 1 1 1h14c.6 0 1-.4 1-1s-.4-1-1-1z\"><\/path><path d=\"M15 1H1c-.6 0-1 .4-1 1s.4 1 1 1h14c.6 0 1-.4 1-1s-.4-1-1-1zM15 13H1c-.6 0-1 .4-1 1s.4 1 1 1h14c.6 0 1-.4 1-1s-.4-1-1-1z\"><\/path><\/g><\/svg><\/span><\/span><div class=\"htoc__itemswrap\"><ul class=\"ht_toc_list\"><li class=\"\"><a href=\"#htoc-why-this-happens\">Why This Happens&nbsp;<\/a><\/li><li class=\"\"><a href=\"#htoc-common-causes\">Common Causes&nbsp;<\/a><\/li><li class=\"\"><a href=\"#htoc-step-by-step-fix\">Step-by-Step Fix&nbsp;&nbsp;<\/a><\/li><li class=\"\"><a href=\"#htoc-advanced-optional-fixes-for-technical-users\">Advanced&nbsp;(Optional)&nbsp;Fixes&nbsp;(For Technical Users)&nbsp;<\/a><\/li><li class=\"\"><a href=\"#htoc-before-you-move-on\">Before You Move&nbsp;On&nbsp;&nbsp;<\/a><\/li><li class=\"\"><a href=\"#htoc-if-this-didn-t-work\">If This&nbsp;Didn\u2019t&nbsp;Work&nbsp;<\/a><\/li><li class=\"\"><a href=\"#htoc-common-mistakes-to-avoid\">Common Mistakes to&nbsp;Avoid&nbsp;<\/a><\/li><li class=\"\"><a href=\"#htoc-empowering-insight\">Empowering Insight&nbsp;<\/a><\/li><li class=\"\"><a href=\"#htoc-next-recommended-steps\">Next Recommended Steps&nbsp;<\/a><\/li><li class=\"\"><a href=\"#htoc-faqs\">FAQs&nbsp;<\/a><\/li><li class=\"\"><a href=\"#htoc-additional-resources\">Additional&nbsp;Resources&nbsp;<\/a><\/li><\/ul><\/div><\/div>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"htoc-why-this-happens\"><strong>Why This Happens<\/strong>&nbsp;<\/h2>\n\n\n\n<p>Email uses&nbsp;<strong>two different server connections<\/strong>:&nbsp;<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td><strong>Function<\/strong>&nbsp;<\/td><td><strong>Protocol<\/strong>&nbsp;<\/td><\/tr><tr><td>Receive email&nbsp;<\/td><td><strong><a href=\"https:\/\/1grid.co.za\/knowledge\/what-is-the-difference-between-imap-and-pop\/#htoc-\">IMAP<\/a> <\/strong>\/ <a href=\"https:\/\/1grid.co.za\/knowledge\/what-is-the-difference-between-imap-and-pop\/#htoc-11111\"><strong>POP3\u00a0<\/strong><\/a><\/td><\/tr><tr><td>Send email&nbsp;<\/td><td><strong><a href=\"https:\/\/1grid.co.za\/knowledge\/recommended-server-settings-for-email-encryption-ports\/#htoc-which-smtp-port-should-i-choose\">SMTP<\/a>\u00a0<\/strong><\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>Because these systems are separate, receiving mail can work normally even when sending fails.&nbsp;<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"htoc-common-causes\"><strong>Common Causes<\/strong>&nbsp;<\/h2>\n\n\n\n<p>Most sending issues occur due to:&nbsp;<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li id=\"htoc-incorrect-smtp-server\">Incorrect <strong><a href=\"https:\/\/1grid.co.za\/knowledge\/understanding-smtp-ports-and-ssltls-encryption\/\" target=\"_blank\" rel=\"noreferrer noopener\">SMTP server<\/a>\u00a0<\/strong><\/li>\n\n\n\n<li id=\"htoc-smtp-authentication-disabled\"><strong><a href=\"https:\/\/1grid.co.za\/knowledge\/recommended-server-settings-for-email-encryption-ports\/\" target=\"_blank\" rel=\"noreferrer noopener\">SMTP authentication<\/a> <\/strong>disabled\u00a0<\/li>\n\n\n\n<li id=\"htoc-wrong-port-settings\">Wrong <a href=\"https:\/\/1grid.co.za\/knowledge\/understanding-smtp-ports-and-ssltls-encryption\/\"><strong>port<\/strong><\/a> <strong><a href=\"https:\/\/1grid.co.za\/knowledge\/recommended-server-settings-for-email-encryption-ports\/\" target=\"_blank\" rel=\"noreferrer noopener\">settings<\/a>\u00a0<\/strong><\/li>\n\n\n\n<li id=\"htoc-isp-blocking-port-25\">ISP blocking <strong><a href=\"https:\/\/1grid.co.za\/knowledge\/understanding-smtp-ports-and-ssltls-encryption\/#htoc-port-25-legacy-server-to-server\" target=\"_blank\" rel=\"noreferrer noopener\">port 25<\/a>\u00a0<\/strong><\/li>\n\n\n\n<li id=\"htoc-ssl-tls-misconfiguration\"><a href=\"https:\/\/1grid.co.za\/knowledge\/understanding-smtp-ports-and-ssltls-encryption\/#htoc-understanding-ssl-vs-tls-encryption\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>SSL\/TLS<\/strong><\/a> misconfiguration\u00a0<\/li>\n\n\n\n<li id=\"htoc-firewall-restrictions\">Firewall&nbsp;restrictions&nbsp;<\/li>\n\n\n\n<li id=\"htoc-email-client-errors\"><strong><a href=\"https:\/\/1grid.co.za\/knowledge\/why-emails-bounce-back-error-messages-and-how-to-fix-them\/#htoc-outlook-and-client-side-errors\" target=\"_blank\" rel=\"noreferrer noopener\">Email client errors<\/a>\u00a0<\/strong><\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"htoc-step-by-step-fix\"><strong>Step-by-Step Fix&nbsp;<\/strong>&nbsp;<\/h2>\n\n\n\n<details class=\"wp-block-details is-layout-flow wp-block-details-is-layout-flow\"><summary><strong>1: Test Sending via <a href=\"https:\/\/1grid.co.za\/knowledge\/how-to-access-your-email-via-webmail\/\">Webmail<\/a>\u00a0<\/strong><\/summary>\n<p id=\"htoc-1-test-sending-via-webmail\">Log in to\u00a0<strong><a href=\"https:\/\/1grid.co.za\/knowledge\/how-to-access-your-email-via-webmail\/\" target=\"_blank\" rel=\"noreferrer noopener\">Webmail<\/a>\u00a0<\/strong>and\u00a0attempt\u00a0to send a message.\u00a0<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>If webmail\u00a0<strong>cannot\u00a0send<\/strong>, the issue may be server-level.\u00a0<\/li>\n\n\n\n<li>If webmail\u00a0<strong>sends successfully<\/strong>, the problem is\u00a0<strong>your email client configuration<\/strong>.\u00a0<\/li>\n<\/ul>\n<\/details>\n\n\n\n<details class=\"wp-block-details is-layout-flow wp-block-details-is-layout-flow\"><summary><strong>2: Confirm the Full Error Message\u00a0<\/strong><\/summary>\n<p id=\"htoc-2-confirm-the-full-error-message\">Check the message&nbsp;displayed&nbsp;in your email client.&nbsp;<\/p>\n\n\n\n<p id=\"htoc-common-errors-include\">Common errors include:&nbsp;<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Message stuck in the outbox\u00a0<\/li>\n\n\n\n<li>Sending failed\u00a0<\/li>\n\n\n\n<li>SMTP authentication\u00a0required\u00a0<\/li>\n\n\n\n<li>Cannot connect to the SMTP server\u00a0<\/li>\n\n\n\n<li>Connection timed out\u00a0<\/li>\n<\/ul>\n\n\n\n<p id=\"htoc-\">If you see a specific\u00a0<strong>SMTP error code<\/strong>, refer to\u00a0our\u00a0<strong><a href=\"https:\/\/1grid.co.za\/knowledge\/a-guide-to-smtperror-codes\/\">SMTP Error Codes<\/a> <\/strong>guide.\u00a0<\/p>\n<\/details>\n\n\n\n<details class=\"wp-block-details is-layout-flow wp-block-details-is-layout-flow\"><summary><strong>3: Verify Your Outgoing Mail Server (SMTP) Settings\u00a0<\/strong><\/summary>\n<p id=\"htoc-3-verify-your-outgoing-mail-server-smtp-settings\">SMTP&nbsp;<strong>535 Authentication Failed<\/strong>&nbsp;errors usually happen when your email client cannot successfully log in to<strong> <a href=\"https:\/\/1grid.co.za\/knowledge\/recommended-server-settings-for-email-encryption-ports\/#htoc-recommended-secure-email-settings\">the outgoing mail server<\/a><\/strong>.&nbsp;<\/p>\n\n\n\n<p id=\"htoc-3-verify-your-outgoing-mail-server-smtp-settings1\">Correcting the settings restores secure authentication and allows your email client to send messages normally.&nbsp;<\/p>\n\n\n\n<p id=\"htoc-this-step-ensures-that-your-smtp-authentication-port-encryption-and-credentials-are-configured-correctly-in-your-email-application\">This step\u00a0ensures that\u00a0your\u00a0<strong>SMTP authentication, port, encryption, and credentials are configured correctly<\/strong>\u00a0in your email application.\u00a0<\/p>\n\n\n\n<details class=\"wp-block-details is-layout-flow wp-block-details-is-layout-flow\"><summary><strong>What This Step Fixes\u00a0<\/strong><\/summary>\n<p>Correct SMTP configuration resolves issues such as:&nbsp;<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li id=\"htoc-smtp-535-authentication-failed\"><strong>SMTP 535 Authentication Failed<\/strong>&nbsp;<\/li>\n\n\n\n<li id=\"htoc-incorrect-login-credentials\">Incorrect login credentials&nbsp;<\/li>\n\n\n\n<li id=\"htoc-email-clients-not-authenticating-with-the-server\">Email clients are not authenticating with the server&nbsp;<\/li>\n\n\n\n<li id=\"htoc-email-clients-not-authenticating-with-the-server1\">Incorrect SMTP port or encryption settings&nbsp;<\/li>\n\n\n\n<li id=\"htoc-sending-restrictions-due-to-authentication-failure\">Sending restrictions due to authentication failure&nbsp;<\/li>\n<\/ul>\n\n\n\n<p>These adjustments\u00a0<strong>restore secure email sending<\/strong>.\u00a0<\/p>\n<\/details>\n\n\n\n<details class=\"wp-block-details is-layout-flow wp-block-details-is-layout-flow\"><summary><strong>What to Check\u00a0<\/strong><\/summary>\n<p>After&nbsp;locating&nbsp;the SMTP configuration screen, confirm:&nbsp;<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li id=\"htoc-outgoing-server-authentication-is-enabled\"><strong>Outgoing server authentication is enabled<\/strong>&nbsp;<\/li>\n\n\n\n<li id=\"htoc-username-is-your-full-email-address\"><strong>Username is your full email address<\/strong>&nbsp;<\/li>\n\n\n\n<li id=\"htoc-password-is-correct\"><strong>Password is correct<\/strong>&nbsp;<\/li>\n\n\n\n<li id=\"htoc-port-is-465-ssl-or-587-tls\"><strong>Port is 465 (SSL) or 587 (TLS)<\/strong>&nbsp;<\/li>\n\n\n\n<li id=\"htoc-encryption-is-enabled-ssl-tls\"><strong>Encryption is enabled (SSL\/TLS)<\/strong>&nbsp;<\/li>\n<\/ul>\n\n\n\n<p>Incorrect authentication or disabled encryption are among the\u00a0<strong>most common causes of SMTP 535 errors<\/strong>.\u00a0<\/p>\n<\/details>\n\n\n\n<details class=\"wp-block-details is-layout-flow wp-block-details-is-layout-flow\"><summary><strong><strong>Recommended 1-grid SMTP Settings<\/strong><\/strong><\/summary>\n<p>Before adjusting your email client,\u00a0confirm that\u00a0you are using the correct server settings.\u00a0You can find your settings via your<strong>\u00a0<a href=\"https:\/\/1grid.co.za\/knowledge\/viewingyour-email-settings-in-cpanel-and-webmail\/\">cPanel<\/a><\/strong>, or<strong> <a href=\"https:\/\/1grid.co.za\/knowledge\/viewingyour-email-settings-inwindows-plesk\/\">Windows Plesk<\/a><\/strong>\u00a0Control Panel, if you need to double-check that these correspond with your email client configuration.<\/p>\n\n\n\n<details class=\"wp-block-details is-layout-flow wp-block-details-is-layout-flow\"><summary><strong>Outgoing Mail Server (SMTP)&nbsp;<\/strong><\/summary>\n<ul class=\"wp-block-list\">\n<li><strong>SMTP Server:<\/strong>&nbsp;mail.yourdomain.co.za&nbsp;<\/li>\n\n\n\n<li><strong>Port (SSL):<\/strong>&nbsp;<strong>465<\/strong>&nbsp;<\/li>\n\n\n\n<li><strong>Port (TLS):<\/strong>&nbsp;<strong>587<\/strong>&nbsp;<\/li>\n\n\n\n<li><strong>Encryption:<\/strong>&nbsp;SSL or TLS&nbsp;<\/li>\n\n\n\n<li><strong>Authentication:<\/strong>&nbsp;Enabled&nbsp;<\/li>\n\n\n\n<li><strong>Username:<\/strong>&nbsp;Your full email address (e.g.&nbsp;<a href=\"mailto:user@yourdomain.co.za\" target=\"_blank\" rel=\"noreferrer noopener\">user@yourdomain.co.za<\/a>)&nbsp;<\/li>\n\n\n\n<li><strong>Password:<\/strong>&nbsp;Your email account password&nbsp;<\/li>\n<\/ul>\n\n\n\n<p id=\"htoc-tip-always-use-authentication-for-outgoing-mail-always-use-encrypted-connections-ssl-tls\"><strong>TIP:<\/strong>&nbsp;<br>Always use&nbsp;<strong>authentication for outgoing mail<\/strong>, and always use&nbsp;<strong>encrypted connections (SSL\/TLS)<\/strong>.&nbsp;<\/p>\n\n\n\n<p id=\"htoc-outgoing-mail-server-smtp1\">These settings ensure secure sending and prevent authentication failures.&nbsp;<\/p>\n<\/details>\n<\/details>\n\n\n\n<details class=\"wp-block-details is-layout-flow wp-block-details-is-layout-flow\"><summary><strong>TIP<\/strong><\/summary>\n<p id=\"htoc-tip-you-can-double-check-your-email-settings-via-your-cpanel-or-windows-plesk-control-panel-to-ensure-you-have-the-correct-settings-for-you\">You can double-check your email settings via your <strong><a href=\"https:\/\/1grid.co.za\/knowledge\/viewingyour-email-settings-in-cpanel-and-webmail\/\">cPanel<\/a> <\/strong>or<strong> <a href=\"https:\/\/1grid.co.za\/knowledge\/viewingyour-email-settings-inwindows-plesk\/\">Windows Plesk<\/a> <\/strong>Control Panel to ensure you have the correct settings for you.<\/p>\n<\/details>\n<\/details>\n\n\n\n<details class=\"wp-block-details is-layout-flow wp-block-details-is-layout-flow\"><summary><strong>4: Confirm SMTP Authentication Is Enabled\u00a0<\/strong><\/summary>\n<p id=\"htoc-4-confirm-smtp-authentication-is-enabled\">SMTP authentication must be enabled to send email.&nbsp;<\/p>\n\n\n\n<p id=\"htoc-look-for-a-setting-similar-to\">Look for a setting&nbsp;similar to:&nbsp;<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li id=\"htoc-my-outgoing-server-requires-authentication\"><strong>My outgoing server requires authentication<\/strong>&nbsp;<\/li>\n<\/ul>\n\n\n\n<p id=\"htoc-4-confirm-smtp-authentication-is-enabled1\">If this&nbsp;option&nbsp;is disabled, sending will fail.&nbsp;<\/p>\n<\/details>\n\n\n\n<details class=\"wp-block-details is-layout-flow wp-block-details-is-layout-flow\"><summary><strong>5: Check SMTP Port Settings\u00a0<\/strong><\/summary>\n<p id=\"htoc-5-check-smtp-port-settings\">Recommended settings:<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td><strong>Security<\/strong>&nbsp;<\/td><td><strong>Port<\/strong>&nbsp;<\/td><\/tr><tr><td>TLS \/ STARTTLS&nbsp;<\/td><td>587&nbsp;<\/td><\/tr><tr><td>SSL&nbsp;<\/td><td>465&nbsp;<\/td><\/tr><tr><td>Non-encrypted&nbsp;<\/td><td>25 (not recommended)&nbsp;<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p id=\"htoc-5-check-smtp-port-settings1\">Incorrect ports are one of the most common causes.&nbsp;<\/p>\n\n\n\n<p id=\"htoc-5-check-smtp-port-settings11\"><strong>TIP:<\/strong> If port&nbsp;<strong>25 fails<\/strong>, change to&nbsp;<strong>587<\/strong>.&nbsp;<\/p>\n<\/details>\n\n\n\n<details class=\"wp-block-details is-layout-flow wp-block-details-is-layout-flow\"><summary><strong>6: Update SMTP Settings in Your Email Client (as\u00a0required)\u00a0<\/strong><\/summary>\n<p id=\"htoc-6-update-smtp-settings-in-your-email-client-as-required\">Most email applications allow SMTP port, encryption, and authentication settings to be updated in the\u00a0<strong>Advanced Mail Settings<\/strong>\u00a0section.\u00a0Once you&#8217;ve made any changes, you can test to determine if you are still unable to send emails or if it succeeds.<\/p>\n\n\n\n<p id=\"htoc-1\">We&#8217;ve provided quick instructions for different email clients below. <\/p>\n\n\n\n<details class=\"wp-block-details is-layout-flow wp-block-details-is-layout-flow\"><summary><strong>Microsoft Outlook 2002 \/ 2003&nbsp;<\/strong><\/summary>\n<ol class=\"wp-block-list\">\n<li id=\"htoc-open-outlook\">Open\u00a0<strong>Outlook<\/strong>\u00a0<\/li>\n\n\n\n<li id=\"htoc-click-tools-e-mail-accounts\">Click\u00a0<strong>Tools<\/strong>\u00a0\u2192\u00a0<strong>E-mail Accounts<\/strong>\u00a0<\/li>\n\n\n\n<li id=\"htoc-select-view-or-change-existing-e-mail-accounts\">Select\u00a0<strong>View or change existing e-mail accounts<\/strong>\u00a0<\/li>\n\n\n\n<li id=\"htoc-click-next\">Click\u00a0<strong>Next<\/strong>\u00a0<\/li>\n\n\n\n<li id=\"htoc-select-your-email-account\">Select your email account\u00a0<\/li>\n\n\n\n<li id=\"htoc-click-change\">Click\u00a0<strong>Change<\/strong>\u00a0<\/li>\n\n\n\n<li id=\"htoc-click-more-settings\">Click\u00a0<strong>More Settings<\/strong>\u00a0<\/li>\n\n\n\n<li id=\"htoc-open-the-advanced-tab\">Open the\u00a0<strong>Advanced<\/strong>\u00a0tab\u00a0<\/li>\n<\/ol>\n<\/details>\n\n\n\n<details class=\"wp-block-details is-layout-flow wp-block-details-is-layout-flow\"><summary><strong>Microsoft Outlook 2007\u00a0<\/strong><\/summary>\n<ol class=\"wp-block-list\">\n<li id=\"htoc-open-outlook1\">Open&nbsp;<strong>Outlook<\/strong>&nbsp;<\/li>\n\n\n\n<li id=\"htoc-click-tools-account-settings\">Click&nbsp;<strong>Tools<\/strong>&nbsp;\u2192&nbsp;<strong>Account Settings<\/strong>&nbsp;<\/li>\n\n\n\n<li id=\"htoc-select-the-email-account\">Select the email account&nbsp;<\/li>\n\n\n\n<li id=\"htoc-click-change11\">Click&nbsp;<strong>Change<\/strong>&nbsp;<\/li>\n\n\n\n<li id=\"htoc-click-more-settings11\">Click&nbsp;<strong>More Settings<\/strong>&nbsp;<\/li>\n\n\n\n<li id=\"htoc-select-the-advanced-tab\">Select the&nbsp;<strong>Advanced<\/strong>&nbsp;tab&nbsp;\u00a0<\/li>\n<\/ol>\n<\/details>\n\n\n\n<details class=\"wp-block-details is-layout-flow wp-block-details-is-layout-flow\"><summary><strong>Microsoft Outlook 2010\u00a0<\/strong><\/summary>\n<ol class=\"wp-block-list\">\n<li id=\"htoc-open-outlook11\">Open&nbsp;<strong>Outlook 2010<\/strong>&nbsp;<\/li>\n\n\n\n<li id=\"htoc-click-account-settings\">Click&nbsp;<strong>Account Settings<\/strong>&nbsp;<\/li>\n\n\n\n<li id=\"htoc-select-your-email-account11\">Select your email account&nbsp;<\/li>\n\n\n\n<li id=\"htoc-click-change1111\">Click&nbsp;<strong>Change<\/strong>&nbsp;<\/li>\n\n\n\n<li id=\"htoc-click-more-settings1111\">Click&nbsp;<strong>More Settings<\/strong>&nbsp;<\/li>\n\n\n\n<li id=\"htoc-open-the-advanced-tab11\">Open the&nbsp;<strong>Advanced<\/strong>&nbsp;tab&nbsp;\u00a0\u00a0<\/li>\n<\/ol>\n<\/details>\n\n\n\n<details class=\"wp-block-details is-layout-flow wp-block-details-is-layout-flow\"><summary><strong>Microsoft Outlook 2013\u00a0<\/strong><\/summary>\n<ol class=\"wp-block-list\">\n<li id=\"htoc-open-outlook111\">Open&nbsp;<strong>Outlook 2013<\/strong>&nbsp;<\/li>\n\n\n\n<li id=\"htoc-click-account-settings11\">Click&nbsp;<strong>Account Settings<\/strong>&nbsp;<\/li>\n\n\n\n<li id=\"htoc-select-your-email-account1111\">Select your email account&nbsp;<\/li>\n\n\n\n<li id=\"htoc-click-change111111\">Click&nbsp;<strong>Change<\/strong>&nbsp;<\/li>\n\n\n\n<li id=\"htoc-click-more-settings111111\">Click&nbsp;<strong>More Settings<\/strong>&nbsp;<\/li>\n\n\n\n<li id=\"htoc-click-the-advanced-tab\">Click the&nbsp;<strong>Advanced<\/strong>&nbsp;tab&nbsp;\u00a0\u00a0<\/li>\n<\/ol>\n<\/details>\n\n\n\n<details class=\"wp-block-details is-layout-flow wp-block-details-is-layout-flow\"><summary><strong>Outlook Express 5.x \/ 6.0\u00a0<\/strong><\/summary>\n<ol class=\"wp-block-list\">\n<li id=\"htoc-open-outlook1111\">Open&nbsp;<strong>Outlook Express<\/strong>&nbsp;<\/li>\n\n\n\n<li id=\"htoc-click-tools-accounts\">Click&nbsp;<strong>Tools<\/strong>&nbsp;\u2192&nbsp;<strong>Accounts<\/strong>&nbsp;<\/li>\n\n\n\n<li id=\"htoc-select-the-mail-tab\">Select the&nbsp;<strong>Mail<\/strong>&nbsp;tab&nbsp;<\/li>\n\n\n\n<li id=\"htoc-select-your-email-account111111\">Select your email account&nbsp;<\/li>\n\n\n\n<li id=\"htoc-click-properties\">Click&nbsp;<strong>Properties<\/strong>&nbsp;<\/li>\n\n\n\n<li id=\"htoc-open-the-advanced-tab1111\">Open the&nbsp;<strong>Advanced<\/strong>&nbsp;tab&nbsp;\u00a0\u00a0<\/li>\n<\/ol>\n<\/details>\n\n\n\n<details class=\"wp-block-details is-layout-flow wp-block-details-is-layout-flow\"><summary><strong>Windows Live Mail (2008 \/ 2009 \/ 2011)\u00a0<\/strong><\/summary>\n<ol class=\"wp-block-list\">\n<li id=\"htoc-open-outlook11111\">Open&nbsp;<strong>Windows Live Mail<\/strong>&nbsp;<\/li>\n\n\n\n<li id=\"htoc-click-accounts\">Click&nbsp;<strong>Accounts<\/strong>&nbsp;<\/li>\n\n\n\n<li id=\"htoc-click-properties11\">Click&nbsp;<strong>Properties<\/strong>&nbsp;<\/li>\n\n\n\n<li id=\"htoc-select-the-advanced-tab11\">Select the&nbsp;<strong>Advanced<\/strong>&nbsp;tab&nbsp;<\/li>\n\n\n\n<li id=\"htoc-update-the-smtp-port-and-security-settings\">Update the SMTP port and security settings&nbsp;\u00a0\u00a0<\/li>\n<\/ol>\n<\/details>\n\n\n\n<details class=\"wp-block-details is-layout-flow wp-block-details-is-layout-flow\"><summary><strong>Mac Mail\u00a0<\/strong><\/summary>\n<ol class=\"wp-block-list\">\n<li id=\"htoc-open-outlook111111\">Open&nbsp;<strong>Mail<\/strong>&nbsp;<\/li>\n\n\n\n<li id=\"htoc-click-mail-preferences\">Click&nbsp;<strong>Mail<\/strong>&nbsp;\u2192&nbsp;<strong>Preferences<\/strong>&nbsp;<\/li>\n\n\n\n<li id=\"htoc-select-accounts\">Select&nbsp;<strong>Accounts<\/strong>&nbsp;<\/li>\n\n\n\n<li id=\"htoc-choose-your-email-account\">Choose your email account&nbsp;<\/li>\n\n\n\n<li id=\"htoc-click-server-settings\">Click\u00a0<strong>Server Settings<\/strong>\u00a0<\/li>\n\n\n\n<li id=\"htoc-11\">If you do not see\u00a0<strong>Server Settings<\/strong>:\u00a0\n<ul class=\"wp-block-list\">\n<li id=\"htoc-open-the-server-dropdown\">Open the server dropdown&nbsp;<\/li>\n\n\n\n<li id=\"htoc-click-edit-server-list\">Click&nbsp;<strong>Edit Server List<\/strong>&nbsp;<\/li>\n\n\n\n<li id=\"htoc-select-the-advanced-tab1111\">Select the&nbsp;<strong>Advanced<\/strong>&nbsp;tab&nbsp;\u00a0\u00a0\u00a0<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n<\/details>\n\n\n\n<details class=\"wp-block-details is-layout-flow wp-block-details-is-layout-flow\"><summary><strong>iPhone \/ iOS Mail\u00a0<\/strong><\/summary>\n<ol class=\"wp-block-list\">\n<li id=\"htoc-111\">Open\u00a0<strong>Settings<\/strong>\u00a0<\/li>\n\n\n\n<li id=\"htoc-11\">Tap&nbsp;<strong>Mail<\/strong>&nbsp;\u2192&nbsp;<strong>Accounts<\/strong>&nbsp;<\/li>\n\n\n\n<li id=\"htoc-select-your-email-account11111111\">Select your email account&nbsp;<\/li>\n\n\n\n<li id=\"htoc-tap-account\">Tap&nbsp;<strong>Account<\/strong>&nbsp;<\/li>\n\n\n\n<li id=\"htoc-scroll-to-outgoing-mail-server-smtp\">Scroll to&nbsp;<strong>Outgoing Mail Server (SMTP)<\/strong>&nbsp;<\/li>\n\n\n\n<li id=\"htoc-tap-smtp\">Tap&nbsp;<strong>SMTP<\/strong>&nbsp;<\/li>\n\n\n\n<li id=\"htoc-select-the-primary-server\">Select the&nbsp;<strong>Primary Server<\/strong>&nbsp;<\/li>\n\n\n\n<li id=\"htoc-update-the-smtp-server-settings\">Update the SMTP server settings&nbsp;<\/li>\n\n\n\n<li id=\"htoc-tap-done-to-save-changes\">Tap&nbsp;<strong>Done<\/strong>&nbsp;to save changes&nbsp;<\/li>\n<\/ol>\n<\/details>\n\n\n\n<details class=\"wp-block-details is-layout-flow wp-block-details-is-layout-flow\"><summary><strong>Mozilla Thunderbird\u00a0<\/strong><\/summary>\n<ol class=\"wp-block-list\">\n<li id=\"htoc-1111\">Open&nbsp;<strong>Thunderbird<\/strong>&nbsp;<\/li>\n\n\n\n<li id=\"htoc-click-edit-account-settings\">Click&nbsp;<strong>Edit<\/strong>&nbsp;\u2192&nbsp;<strong>Account Settings<\/strong>&nbsp;<\/li>\n\n\n\n<li id=\"htoc-select-outgoing-server-smtp\">Select&nbsp;<strong>Outgoing Server (SMTP)<\/strong>&nbsp;<\/li>\n\n\n\n<li id=\"htoc-select-the-smtp-server-to-modify\">Select the SMTP server to modify&nbsp;<\/li>\n\n\n\n<li id=\"htoc-click-edit\">Click\u00a0<strong>Edit<\/strong>\u00a0<\/li>\n<\/ol>\n\n\n\n<p>For full guides specific to your email client, you can explore more <a href=\"https:\/\/1grid.co.za\/knowledge\/recommended-server-settings-for-email-encryption-ports\/#htoc-next-recommended-step\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>here<\/strong><\/a>.\u00a0<\/p>\n<\/details>\n<\/details>\n\n\n\n<details class=\"wp-block-details is-layout-flow wp-block-details-is-layout-flow\"><summary><strong>7: Check for Port 25 Blocking\u00a0<\/strong><\/summary>\n<p id=\"htoc-111111111\">Many Internet Service Providers block\u00a0<strong>port 25<\/strong>\u00a0to prevent spam.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>If your email client uses port 25, sending may fail.\u00a0\u00a0<\/li>\n<\/ul>\n\n\n\n<p id=\"htoc-11111\">Attempt to change\u00a0the\u00a0SMTP port to:\u00a0<\/p>\n\n\n\n<pre id=\"htoc-111111\" class=\"wp-block-code\"><code><strong>587 (recommended)<\/strong>\u00a0\nor\u00a0\n<strong>465 (SSL)<\/strong>\u00a0<\/code><\/pre>\n<\/details>\n\n\n\n<details class=\"wp-block-details is-layout-flow wp-block-details-is-layout-flow\"><summary><strong>8: Restart Your Email Client\u00a0<\/strong><\/summary>\n<p id=\"htoc-1111111111\">After\u00a0verifying and\u00a0changing settings:\u00a0<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Send a test message&nbsp;<\/li>\n\n\n\n<li>Save configuration&nbsp;<\/li>\n\n\n\n<li>Restart the email application\u00a0<\/li>\n<\/ul>\n<\/details>\n\n\n\n<ol start=\"2\" class=\"wp-block-list\"><\/ol>\n\n\n\n<ol start=\"3\" class=\"wp-block-list\"><\/ol>\n\n\n\n<ol start=\"4\" class=\"wp-block-list\"><\/ol>\n\n\n\n<ol start=\"6\" class=\"wp-block-list\"><\/ol>\n\n\n\n<ol start=\"7\" class=\"wp-block-list\"><\/ol>\n\n\n\n<ol start=\"2\" class=\"wp-block-list\"><\/ol>\n\n\n\n<ol start=\"3\" class=\"wp-block-list\"><\/ol>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"htoc-advanced-optional-fixes-for-technical-users\"><strong>Advanced&nbsp;(Optional)&nbsp;Fixes&nbsp;(For Technical Users)<\/strong>&nbsp;<\/h2>\n\n\n\n<p>Administrators, or Technical Users,&nbsp;can perform&nbsp;additional&nbsp;diagnostics if sending issues persist.&nbsp;<\/p>\n\n\n\n<details class=\"wp-block-details is-layout-flow wp-block-details-is-layout-flow\"><summary><strong>1.\u00a0Check SMTP Connectivity\u00a0<\/strong><\/summary>\n<p id=\"htoc-1-check-smtp-connectivity\">Test connection to the SMTP server:&nbsp;<\/p>\n\n\n\n<pre id=\"htoc-telnet-mail-yourdomain-com-587\" class=\"wp-block-code\"><code>telnet mail.yourdomain.com 587&nbsp;<\/code><\/pre>\n\n\n\n<p id=\"htoc-a-successful-connection-returns\">A successful connection returns:&nbsp;<\/p>\n\n\n\n<pre id=\"htoc-1-check-smtp-connectivity1\" class=\"wp-block-code\"><code>220 mail.server.com ESMTP\u00a0<\/code><\/pre>\n<\/details>\n\n\n\n<details class=\"wp-block-details is-layout-flow wp-block-details-is-layout-flow\"><summary><strong>2. Verify Firewall Rules\u00a0<\/strong><\/summary>\n<p id=\"htoc-2-verify-firewall-rules\">Ensure outbound connections allow the following SMTP ports:&nbsp;<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li id=\"htoc-25\">25&nbsp;<\/li>\n\n\n\n<li id=\"htoc-465\">465&nbsp;<\/li>\n\n\n\n<li id=\"htoc-587\">587&nbsp;<\/li>\n<\/ul>\n\n\n\n<p id=\"htoc-2-verify-firewall-rules1\">Blocked&nbsp;firewall&nbsp;rules can prevent SMTP connections.&nbsp;<\/p>\n<\/details>\n\n\n\n<details class=\"wp-block-details is-layout-flow wp-block-details-is-layout-flow\"><summary><strong>3.\u00a0Verify Server Authentication Logs\u00a0<\/strong><\/summary>\n<p id=\"htoc-3-verify-server-authentication-logs\">Check mail logs for:&nbsp;<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li id=\"htoc-authentication-failures\">authentication failures&nbsp;<\/li>\n\n\n\n<li id=\"htoc-smtp-connection-timeouts\">smtp connection timeouts&nbsp;<\/li>\n\n\n\n<li id=\"htoc-relay-denied\">relay denied&nbsp;<\/li>\n<\/ul>\n\n\n\n<p id=\"htoc-example-location\">Example location:&nbsp;<\/p>\n\n\n\n<pre id=\"htoc-3-verify-server-authentication-logs1\" class=\"wp-block-code\"><code>\/var\/log\/exim_mainlog\u00a0<\/code><\/pre>\n<\/details>\n\n\n\n<details class=\"wp-block-details is-layout-flow wp-block-details-is-layout-flow\"><summary><strong>4.\u00a0Confirm Email Routing\u00a0<\/strong><\/summary>\n<p id=\"htoc-4-confirm-email-routing\">Incorrect routing settings may cause sending issues.&nbsp;<\/p>\n\n\n\n<p id=\"htoc-verify-routing-configuration\">Verify routing configuration:&nbsp;<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li id=\"htoc-cpanel-email-email-routing\"><strong><a href=\"https:\/\/1grid.co.za\/knowledge\/cpanel-how-to-change-mx-records-and-email-routing\/\" target=\"_blank\" rel=\"noreferrer noopener\">cPanel \u2192 Email \u2192 Email Routing<\/a><\/strong>\u00a0<\/li>\n<\/ul>\n\n\n\n<p id=\"htoc-4-confirm-email-routing1\">The correct&nbsp;setting depends on your email hosting environment.&nbsp;<\/p>\n<\/details>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"htoc-before-you-move-on\"><strong>Before You Move&nbsp;On<\/strong><strong>&nbsp;<\/strong>&nbsp;<\/h2>\n\n\n\n<p>Confirm the following:&nbsp;&nbsp;<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li id=\"htoc-smtp-authentication-enabled\">SMTP authentication is enabled\u00a0<\/li>\n\n\n\n<li id=\"htoc-correct-outgoing-server-configured\">The correct outgoing server is configured\u00a0<\/li>\n\n\n\n<li id=\"htoc-smtp-port-set-to-587-or-465\">The SMTP port is set to\u00a0<strong>587 or 465<\/strong>\u00a0<\/li>\n\n\n\n<li id=\"htoc-email-password-is-correct\">The email\u00a0password\u00a0is correct\u00a0<\/li>\n\n\n\n<li id=\"htoc-test-email-successfully-sent\">A test email was successfully sent\u00a0<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"htoc-if-this-didn-t-work\"><strong>If This&nbsp;Didn\u2019t&nbsp;Work<\/strong>&nbsp;<\/h2>\n\n\n\n<p>Try these&nbsp;additional&nbsp;checks:&nbsp;<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li id=\"htoc-send-email-from-webmail\">Send an email from Webmail&nbsp;<\/li>\n\n\n\n<li id=\"htoc-test-from-another-device\">Test from another device&nbsp;<\/li>\n\n\n\n<li id=\"htoc-temporarily-disable-firewall\">Temporarily disable&nbsp;the firewall&nbsp;<\/li>\n\n\n\n<li id=\"htoc-reset-email-account-password\">Reset email account password&nbsp;<\/li>\n\n\n\n<li id=\"htoc-re-add-the-email-account-in-your-client\">Re-add the email account in your client&nbsp;<\/li>\n<\/ul>\n\n\n\n<p>If the issue continues, contact support and include:&nbsp;<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li id=\"htoc-error-message\">Error message&nbsp;<\/li>\n\n\n\n<li id=\"htoc-timestamp\">Timestamp&nbsp;<\/li>\n\n\n\n<li id=\"htoc-sender-email-address\">Sender email address&nbsp;<\/li>\n\n\n\n<li id=\"htoc-device-or-email-client-used\">Device or email client used&nbsp;<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"htoc-common-mistakes-to-avoid\"><strong>Common Mistakes to&nbsp;Avoid<\/strong>&nbsp;<\/h2>\n\n\n\n<p>Most sending failures occur because:&nbsp;<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li id=\"htoc-smtp-authentication-disabled1\">SMTP authentication disabled&nbsp;<\/li>\n\n\n\n<li id=\"htoc-wrong-smtp-port-used\">Wrong SMTP port used&nbsp;<\/li>\n\n\n\n<li id=\"htoc-outgoing-server-incorrect\">Outgoing server incorrect&nbsp;<\/li>\n\n\n\n<li id=\"htoc-password-outdated\">Password outdated&nbsp;<\/li>\n\n\n\n<li id=\"htoc-port-25-blocked\">Port 25 blocked&nbsp;<\/li>\n<\/ul>\n\n\n\n<p>Correcting these resolves most issues.&nbsp;<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"htoc-empowering-insight\"><strong>Empowering Insight<\/strong>&nbsp;<\/h2>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1600\" height=\"300\" src=\"https:\/\/1grid.co.za\/knowledge\/wp-content\/uploads\/2026\/03\/1-grid-Images-for-KB-Articles-1000-x-600-px-1600-x-300-px.png\" alt=\"Empowering Insight\" class=\"wp-image-34464\"\/><\/figure>\n<\/div>\n\n\n<p>Email delivery relies on\u00a0<strong>separate send and\u00a0receive\u00a0systems<\/strong>.\u00a0<br>\u00a0<br>Fixing <a href=\"https:\/\/1grid.co.za\/knowledge\/recommended-server-settings-for-email-encryption-ports\/#htoc-recommended-secure-email-settings\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>the outgoing SMTP settings<\/strong><\/a> usually restores email sending in minutes.\u00a0<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"htoc-next-recommended-steps\"><strong>Next Recommended Steps<\/strong>&nbsp;<\/h2>\n\n\n\n<p>If sending still fails, review these error codes:\u00a0<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li id=\"htoc-smtp-535-authentication-failed11\">SMTP 535: Authentication Failed&nbsp;<\/li>\n\n\n\n<li id=\"htoc-smtp-error-421-temporary-server-error\">SMTP Error 421: Temporary Server Error&nbsp;&nbsp;<\/li>\n\n\n\n<li id=\"htoc-smtp-error-554-transaction-failed\">SMTP Error 554: Transaction Failed&nbsp;<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"htoc-faqs\"><strong>FAQs<\/strong>&nbsp;<\/h2>\n\n\n\n<details class=\"wp-block-details is-layout-flow wp-block-details-is-layout-flow\"><summary><strong>Q.\u00a0Will I lose my emails?\u00a0<\/strong><\/summary>\n<p id=\"htoc-q-will-i-lose-my-emails-no-stored-emails-remain-safely-on-the-server\">No, stored emails\u00a0remain\u00a0safely\u00a0on the server.\u00a0<\/p>\n<\/details>\n\n\n\n<details class=\"wp-block-details is-layout-flow wp-block-details-is-layout-flow\"><summary><strong>Q.\u00a0Why can I receive emails but not send them?\u00a0\u00a0<\/strong><\/summary>\n<p id=\"htoc-q-why-can-i-receive-emails-but-not-send-them-receiving-uses-imap-pop-while-sending-uses-smtp-these-systems-operate-independently\">Receiving uses IMAP\/POP, while sending uses SMTP. These systems\u00a0operate\u00a0independently.\u00a0<\/p>\n<\/details>\n\n\n\n<details class=\"wp-block-details is-layout-flow wp-block-details-is-layout-flow\"><summary><strong>Q.\u00a0Can I undo these changes?\u00a0<\/strong><\/summary>\n<p id=\"htoc-q-can-i-undo-these-changes-yes-email-client-settings-can-be-changed-or-reset-anytime\">Yes, email client settings can be changed or reset anytime.\u00a0<\/p>\n<\/details>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"htoc-additional-resources\"><strong>Additional&nbsp;Resources<\/strong>&nbsp;<\/h2>\n\n\n\n<p><a href=\"https:\/\/1grid.co.za\/knowledge\/a-guide-to-smtperror-codes\/\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>A Guide to SMTP Error Codes<\/strong><\/a><br><a href=\"https:\/\/1grid.co.za\/knowledge\/understanding-smtp-ports-and-ssltls-encryption\/\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>Understanding SMTP Ports and SSL\/TLS Encryption<\/strong><\/a><br><a href=\"https:\/\/1grid.co.za\/knowledge\/recommended-server-settings-for-email-encryption-ports\/\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>Recommended Server Settings for Email (Encryption &amp; Ports)\u00a0\u00a0<\/strong><\/a><br><strong><a href=\"https:\/\/1grid.co.za\/knowledge\/settings-to-configure-your-1grid-email-accounts-across-devices\/\" target=\"_blank\" rel=\"noreferrer noopener\">Settings to Configure Email Accounts Across Devices<\/a><\/strong><br><a href=\"https:\/\/1grid.co.za\/knowledge\/why-emails-bounce-back-error-messages-and-how-to-fix-them\/\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>Why Emails Bounce Back, Error Messages and How to Fix Them<\/strong><\/a><\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"htoc-need-additional-support\"><strong>Need Additional Support?<\/strong>&nbsp;<\/h2>\n\n\n\n<p><strong>We&#8217;re&nbsp;Here to&nbsp;<\/strong><a href=\"https:\/\/1grid.co.za\/knowledge\/\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>Help<\/strong><\/a><strong>:<\/strong>&nbsp;<\/p>\n\n\n\n<p>Diagnosing why you are unable to send emails while receiving is fine,\u00a0and how to fix this\u00a0doesn\u2019t\u00a0have\u00a0to\u00a0feel technical\u00a0with\u00a0this\u00a0easy-to-reference guide. Stuck?\u00a0Check out our\u00a0<a href=\"https:\/\/1grid.co.za\/knowledge\/1-grid-scope-of-support\/\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>Scope of Support<\/strong><\/a>, and then contact our Support Team for\u00a0further\u00a0clarity and\u00a0guidance\u00a0(<a href=\"https:\/\/1grid.co.za\/contact-us\/\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>https:\/\/1grid.co.za\/contact-us\/<\/strong><\/a>).\u00a0We&#8217;re\u00a0ready\u00a0to see\u00a0how we can help!\u00a0<\/p>\n","protected":false},"excerpt":{"rendered":"<p>If you\u00a0can receive but are unable to send emails, the issue is usually related to your\u00a0outgoing mail server (SMTP) configuration.\u00a0 This guide will help you:&nbsp; Most cases of being unable to send emails are caused by\u00a0simple configuration issues, such as incorrect ports or authentication settings.\u00a0 By the end of this&#8230;<\/p>\n","protected":false},"author":21,"comment_status":"closed","ping_status":"closed","template":"","format":"standard","meta":{"inline_featured_image":false,"footnotes":""},"ht-kb-category":[1194],"ht-kb-tag":[1694,1494,1514,928,1693],"class_list":["post-34507","ht_kb","type-ht_kb","status-publish","format-standard","hentry","ht_kb_category-email-troubleshooting","ht_kb_tag-email-client-problems","ht_kb_tag-email-configuration","ht_kb_tag-email-troubleshooting","ht_kb_tag-smtp","ht_kb_tag-unable-to-send-emails"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v22.0 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Unable to Send Emails, Receiving is Fine (How to Fix) - 1-grid Knowledge Base<\/title>\n<meta name=\"description\" content=\"Fix emails issue when you can receive but unable to send emails. Learn how to correct SMTP settings and restore outgoing mail delivery.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/1grid.co.za\/knowledge\/unable-to-send-emails-receiving-is-fine-how-to-fix\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Unable to Send Emails, Receiving is Fine (How to Fix) - 1-grid Knowledge Base\" \/>\n<meta property=\"og:description\" content=\"Fix emails issue when you can receive but unable to send emails. 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