{"id":24521,"date":"2026-01-30T12:25:04","date_gmt":"2026-01-30T12:25:04","guid":{"rendered":"https:\/\/1-grid.com\/knowledge\/email-restrictions\/"},"modified":"2026-01-30T12:28:12","modified_gmt":"2026-01-30T12:28:12","slug":"email-restrictions","status":"publish","type":"ht_kb","link":"https:\/\/1grid.co.za\/knowledge\/email-restrictions\/","title":{"rendered":"Email Restrictions: Understanding\u00a0MailChannels\u00a0Sending Limits"},"content":{"rendered":"\n<p>To protect your domain\u2019s reputation and ensure that your emails are delivered successfully,&nbsp;<a href=\"https:\/\/www.mailchannels.com\/\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>MailChannels<\/strong><\/a>&nbsp;applies email sending limits to every domain.&nbsp;<a href=\"https:\/\/1grid.co.za\/knowledge\/how-to-avoid-mailchannels-blocks\/\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>These limits help prevent spam-like behaviour, reduce delivery failures, and keep your communication secure and reliable<\/strong><\/a>.&nbsp;<\/p>\n\n\n\n<p>This guide will explain each&nbsp;MailChannels&nbsp;limit in clear, easy-to-understand terms so you can send confidently, avoid interruptions, and follow safe sending best practices.&nbsp;<\/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\/2022\/02\/1-grid-Images-for-KB-Articles-1000-x-600-px-44-1.png\" alt=\"\" class=\"wp-image-34323\"\/><\/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-what-this-means\">What This Means&nbsp;&nbsp;&nbsp;<\/a><\/li><li class=\"\"><a href=\"#htoc-email-sending-limits-with-mailchannels\">Email Sending Limits with&nbsp;MailChannels&nbsp;<\/a><ul class=\"ht_toc_child_list\"><li class=\"\"><a href=\"#htoc-1-emails-per-hour-sending-volume-limit\">1. Emails Per Hour (Sending Volume Limit)&nbsp;<\/a><\/li><li class=\"\"><a href=\"#htoc-2-email-size-limit-attachments-message-body\">2. Email Size Limit (Attachments + Message Body)&nbsp;<\/a><\/li><li class=\"\"><a href=\"#htoc-3-recipients-allowed-maximum-per-email\">3. Recipients Allowed (Maximum per Email)&nbsp;<\/a><\/li><li class=\"\"><a href=\"#htoc-4-online-storage-quota-mailbox-disk-space-limits\">4. Online Storage Quota (Mailbox \/ Disk Space Limits)&nbsp;<\/a><\/li><li class=\"\"><a href=\"#htoc-5-bandwidth-limit\">5. Bandwidth Limit&nbsp;<\/a><\/li><\/ul><\/li><li class=\"\"><a href=\"#htoc-when-to-contact-1-grid-support\">When to Contact 1-grid Support&nbsp;<\/a><\/li><li class=\"\"><a href=\"#htoc-faqs\">FAQs&nbsp;&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-what-this-means\"><strong>What This Means&nbsp;&nbsp;<\/strong>&nbsp;<\/h2>\n\n\n\n<p>Email restrictions are safeguards that help ensure your messages reach their recipients safely.&nbsp;MailChannels&nbsp;monitors sending behaviour and&nbsp;applies&nbsp;limits to protect your domain from being flagged as harmful or<strong>&nbsp;<\/strong><a href=\"https:\/\/1grid.co.za\/knowledge\/blocked-via-mailchannels-due-to-spam\/\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>spammy<\/strong><\/a>.&nbsp;<\/p>\n\n\n\n<p>These limits also prevent sudden spikes in traffic, excessively large emails, or bulk-sending patterns that could negatively&nbsp;impact&nbsp;your domain reputation. By staying within these guidelines, you help&nbsp;maintain&nbsp;strong deliverability and avoid unnecessary email failures.&nbsp;<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"htoc-email-sending-limits-with-mailchannels\"><strong>Email Sending Limits with&nbsp;MailChannels<\/strong>&nbsp;<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"htoc-1-emails-per-hour-sending-volume-limit\"><strong>1. Emails Per Hour (Sending Volume Limit)<\/strong>&nbsp;<\/h3>\n\n\n\n<p>To&nbsp;maintain&nbsp;a healthy sending reputation, we recommend starting with&nbsp;<strong>100 emails per hour<\/strong>, especially when sending newsletters, announcements, or promotional content. This allows&nbsp;MailChannels&nbsp;to recognise your sending pattern as safe and consistent.&nbsp;<\/p>\n\n\n\n<p>You can gradually increase this volume over time once&nbsp;you\u2019ve&nbsp;built a stable reputation and cleaned your mailing lists.&nbsp;<\/p>\n\n\n\n<p><strong>Important:&nbsp;<\/strong>Every recipient counts toward your hourly limit.&nbsp;<br>&nbsp;<br>For example:&nbsp;<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li id=\"htoc-sending-1-email-to-5-recipients-to-cc-bcc-counts-as-6-emails\">Sending&nbsp;<strong>1 email<\/strong>&nbsp;to&nbsp;<strong>5 recipients<\/strong>&nbsp;(To\/CC\/BCC) counts as&nbsp;<strong>6 emails<\/strong>.&nbsp;<\/li>\n<\/ul>\n\n\n\n<p>Keeping within this limit helps prevent temporary blocks or interrupted delivery.&nbsp;<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"htoc-2-email-size-limit-attachments-message-body\"><strong>2. Email Size Limit (Attachments + Message Body)<\/strong>&nbsp;<\/h3>\n\n\n\n<p>MailChannels&nbsp;allows messages up to&nbsp;<strong>25 MB per email<\/strong>, including attachments.&nbsp;<\/p>\n\n\n\n<p>This means&nbsp;that the below applies and cannot exceed&nbsp;<strong>25&nbsp;MB in&nbsp;total<\/strong>.&nbsp;<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li id=\"htoc-a-single-large-file-or\">A single large file, or<\/li>\n\n\n\n<li id=\"htoc-multiple-smaller-files-combined\">Multiple smaller files combined&nbsp;<\/li>\n<\/ul>\n\n\n\n<p><strong>Tip: If<\/strong>&nbsp;you need to send something larger, use a cloud-sharing link such as<strong>&nbsp;<\/strong><a href=\"https:\/\/drive.google.com\/drive\/quota\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>Google Drive<\/strong><\/a>,&nbsp;<a href=\"https:\/\/www.microsoft.com\/en-za\/microsoft-365\/onedrive\/online-cloud-storage\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>OneDrive<\/strong><\/a>,<strong>&nbsp;<\/strong><a href=\"https:\/\/wetransfer.com\/\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>WeTransfer<\/strong><\/a>, or<strong>&nbsp;<\/strong><a href=\"https:\/\/www.dropbox.com\/\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>Dropbox<\/strong><\/a><strong>&nbsp;<\/strong>to ensure smooth delivery.&nbsp;<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"htoc-3-recipients-allowed-maximum-per-email\"><strong>3. Recipients Allowed (Maximum per Email)<\/strong>&nbsp;<\/h3>\n\n\n\n<p>To protect deliverability and<strong>&nbsp;<\/strong><a href=\"https:\/\/1grid.co.za\/knowledge\/blocked-via-mailchannels-due-to-spam\/\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>prevent spam-like patterns<\/strong><\/a>, you may send an email to&nbsp;<strong>a maximum of 25 recipients<\/strong>&nbsp;at once.&nbsp;<\/p>\n\n\n\n<p>This includes:&nbsp;<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li id=\"htoc-to\">To&nbsp;<\/li>\n\n\n\n<li id=\"htoc-cc\">CC&nbsp;<\/li>\n\n\n\n<li id=\"htoc-bcc\">BCC&nbsp;<\/li>\n<\/ul>\n\n\n\n<p>If you need to reach a larger group, we recommend sending your message in smaller batches or using<strong>&nbsp;<\/strong><a href=\"https:\/\/www.google.com\/search?q=email+marketing+tools+free&amp;sca_esv=e472ae4fb423b2b1&amp;rlz=1C1GCEU_enZA1059ZA1063&amp;sxsrf=AE3TifNQvMgW_B-7ozMtxA8ABRRhLyRCAA%3A1764749119305&amp;ei=P-8vac2oEs6EhbIP_prCqQ4&amp;oq=email+marketing+tools&amp;gs_lp=Egxnd3Mtd2l6LXNlcnAiFWVtYWlsIG1hcmtldGluZyB0b29scyoCCAEyBRAAGIAEMgUQABiABDIFEAAYgAQyBRAAGIAEMgUQABiABDIFEAAYgAQyBRAAGIAEMgUQABiABDIFEAAYgAQyBRAAGIAESLUzUOwDWNckcAJ4AZABAZgB_wKgAeQ6qgEGMi0yMS41uAEByAEA-AEBmAIXoAL-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_ida2hnySIBgGQBhG6BgYIARABGAmSBwgyLjAuMTYuNaAH-NYBsgcGMi0xNi41uAftMMIHCDAuNS4xNy4xyAdY&amp;sclient=gws-wiz-serp\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>email marketing tools<\/strong><\/a><strong>&nbsp;<\/strong>designed for bulk delivery.&nbsp;<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"htoc-4-online-storage-quota-mailbox-disk-space-limits\"><strong>4. Online Storage Quota (Mailbox \/ Disk Space Limits)<\/strong>&nbsp;<\/h3>\n\n\n\n<p>When your mailbox or hosting disk space reaches its limit, your services will automatically stop until space is freed.&nbsp;<\/p>\n\n\n\n<p>This may affect:&nbsp;<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li id=\"htoc-sending-emails\">Sending emails&nbsp;<\/li>\n\n\n\n<li id=\"htoc-receiving-emails\">Receiving emails&nbsp;<\/li>\n\n\n\n<li id=\"htoc-general-hosting-functions\">General hosting functions&nbsp;<\/li>\n<\/ul>\n\n\n\n<p>To restore full functionality:&nbsp;<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li id=\"htoc-delete-old-or-unnecessary-emails-or\">Delete old or unnecessary emails, or&nbsp;<\/li>\n\n\n\n<li id=\"htoc-upgrade-to-a-larger-hosting-package\">Upgrade to a larger hosting package&nbsp;<\/li>\n<\/ul>\n\n\n\n<p><strong>Here are helpful guides to manage your mailbox size:<\/strong>&nbsp;<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li id=\"htoc-how-to-change-mailbox-size-in-windows-plesk\"><a href=\"https:\/\/1grid.co.za\/knowledge\/how-to-change-mailbox-size-in-windows-plesk\/\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>How to Change Mailbox Size in Windows Plesk<\/strong><\/a>&nbsp;<\/li>\n\n\n\n<li id=\"htoc-how-to-adjust-email-quota-in-cpanel\"><a href=\"https:\/\/1grid.co.za\/knowledge\/cpanel-how-to-adjust-email-quota\/\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>How to Adjust Email Quota in cPanel<\/strong><\/a>&nbsp;<\/li>\n\n\n\n<li id=\"htoc-how-to-view-your-quotas-in-websitepanel-net\"><a href=\"https:\/\/1grid.co.za\/knowledge\/how-to-view-your-quotas-in-website-panel-.net\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>How to View Your Quotas in&nbsp;WebsitePanel&nbsp;(.NET)<\/strong><\/a>&nbsp;<\/li>\n<\/ul>\n\n\n\n<p>If&nbsp;you\u2019d&nbsp;prefer to upgrade, explore&nbsp;our&nbsp;<a href=\"https:\/\/1grid.co.za\/hosting\/web-hosting\/\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>hosting packages<\/strong><\/a>&nbsp;anytime at&nbsp;<a href=\"https:\/\/1grid.co.za\/\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>1grid.co.za<\/strong><\/a>&nbsp;or contact us and&nbsp;we\u2019ll&nbsp;guide you.&nbsp;<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"htoc-5-bandwidth-limit\"><strong>5. Bandwidth Limit<\/strong>&nbsp;<\/h3>\n\n\n\n<p>When the&nbsp;allocated&nbsp;bandwidth for your hosting package is reached:&nbsp;<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li id=\"htoc-your-services-will-temporarily-stop\">Your services will temporarily stop&nbsp;<\/li>\n\n\n\n<li id=\"htoc-email-sending-and-receiving-may-be-interrupted\">Email sending and receiving may be interrupted&nbsp;<\/li>\n\n\n\n<li id=\"htoc-website-availability-and-hosting-functions-may-be-affected\">Website availability and hosting functions may be affected&nbsp;<\/li>\n<\/ul>\n\n\n\n<p>To restore service, you will need to upgrade to a&nbsp;<a href=\"https:\/\/1grid.co.za\/hosting\/web-hosting\/\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>hosting plan<\/strong><\/a>&nbsp;with higher bandwidth.&nbsp;<\/p>\n\n\n\n<p>Once you receive our bandwidth notification, we recommend upgrading as soon as possible to prevent ongoing interruptions. If&nbsp;you\u2019re&nbsp;unsure which plan suits your needs, our Support Team will help you choose the best&nbsp;option.&nbsp;<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"htoc-when-to-contact-1-grid-support\"><strong>When to Contact 1-grid Support<\/strong>&nbsp;<\/h2>\n\n\n\n<p>If you have followed the guidelines above but still experience sending issues, reach out to our Support Team.&nbsp;&nbsp;<\/p>\n\n\n\n<p><strong>Please include (with screenshots if possible)<\/strong>:&nbsp;<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li id=\"htoc-the-exact-error-message\">The exact error message&nbsp;<\/li>\n\n\n\n<li id=\"htoc-how-many-emails-you-attempted-to-send\">How many emails that you attempted&nbsp;to send&nbsp;<\/li>\n\n\n\n<li id=\"htoc-whether-the-issue-happened-during-bulk-sending\">Whether the issue happened during bulk sending&nbsp;<\/li>\n\n\n\n<li id=\"htoc-your-current-mailbox-storage-levels\">Your current mailbox storage levels&nbsp;<\/li>\n\n\n\n<li id=\"htoc-any-recent-changes-made-to-dns-or-hosting-packages\">Any recent changes made to DNS or hosting packages&nbsp;<\/li>\n<\/ul>\n\n\n\n<p>We\u2019re&nbsp;here to help ensure smooth and reliable email communication for your domain.&nbsp;<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"htoc-faqs\"><strong>FAQs<\/strong><strong>&nbsp;<\/strong>&nbsp;<\/h2>\n\n\n\n<details class=\"wp-block-details is-layout-flow wp-block-details-is-layout-flow\"><summary><strong>Q.Why does&nbsp;MailChannels&nbsp;limit how many emails I can send per hour?&nbsp;<\/strong><\/summary>\n<p id=\"htoc-1-why-does-mailchannels-limit-how-many-emails-i-can-send-per-hour-these-limits-help-protect-your-domain-reputation-by-preventing-spam-like-activity-and-ensuring-that-receiving-servers-trust-your-messages\">These limits help protect your domain reputation by preventing spam-like activity and ensuring that receiving servers trust your messages.&nbsp;<\/p>\n<\/details>\n\n\n\n<details class=\"wp-block-details is-layout-flow wp-block-details-is-layout-flow\"><summary><strong>Q. Does every CC and BCC count toward the hourly limit?&nbsp;<\/strong><\/summary>\n<p id=\"htoc-2-does-every-cc-and-bcc-count-toward-the-hourly-limit-yes-each-individual-recipient-counts-as-one-email\">Yes, each individual recipient counts as one email.&nbsp;<\/p>\n<\/details>\n\n\n\n<details class=\"wp-block-details is-layout-flow wp-block-details-is-layout-flow\"><summary><strong>Q. Can I increase these limits?&nbsp;<\/strong><\/summary>\n<p id=\"htoc-3-can-i-increase-these-limits-yes-but-gradually-start-with-consistent-sending-behaviour-and-clean-lists-over-time-your-sending-reputation-improves-and-you-can-increase-the-volume-safely\">Yes, but gradually. Start with consistent sending behaviour and clean lists. Over time, your sending reputation&nbsp;improves,&nbsp;and you can increase the volume safely.&nbsp;<\/p>\n<\/details>\n\n\n\n<details class=\"wp-block-details is-layout-flow wp-block-details-is-layout-flow\"><summary><strong>Q. What happens if my mailbox or hosting storage is full?&nbsp;<\/strong><\/summary>\n<p id=\"htoc-4-what-happens-if-my-mailbox-or-hosting-storage-is-full-email-services-will-stop-until-you-free-up-space-or-upgrade-your-hosting-plan\">Email services will stop until&nbsp;you&nbsp;free up space or upgrade your hosting plan.&nbsp;<\/p>\n<\/details>\n\n\n\n<details class=\"wp-block-details is-layout-flow wp-block-details-is-layout-flow\"><summary><strong>Q. Why is my email rejected even when I am within the limits?&nbsp;<\/strong><\/summary>\n<p id=\"htoc-5-why-is-my-email-rejected-even-when-i-am-within-the-limits-common-causes-include-invalid-recipients-spam-like-content-a-compromised-mailbox-or-dns-authentication-issues\">Common causes include invalid recipients, spam-like content, a compromised mailbox, or DNS authentication issues.&nbsp;<\/p>\n<\/details>\n\n\n\n<details class=\"wp-block-details is-layout-flow wp-block-details-is-layout-flow\"><summary><strong>Q. Can I send large files via email?&nbsp;<\/strong><\/summary>\n<p id=\"htoc-6-can-i-send-large-files-via-email-files-must-be-25-mb-or-smaller-for-larger-files-use-a-cloud-sharing-link\">Files must be 25 MB or smaller. For larger files, use a&nbsp;cloud sharing&nbsp;link.&nbsp;<\/p>\n<\/details>\n\n\n\n<details class=\"wp-block-details is-layout-flow wp-block-details-is-layout-flow\"><summary><strong>Q. What tools can help me manage bulk email sending?&nbsp;<\/strong><\/summary>\n<p id=\"htoc-7-what-tools-can-help-me-manage-bulk-email-sending-mailchimp-brevo-and-similar-email-service-providers-are-designed-for-bulk-and-newsletter-style-communication\"><a href=\"https:\/\/www.google.com\/aclk?sa=L&amp;ai=DChsSEwiS3PWM-6CRAxV6m1AGHbInDbkYACICCAEQABoCZGc&amp;ae=2&amp;co=1&amp;ase=2&amp;gclid=CjwKCAiA3L_JBhAlEiwAlcWO5zwcxsfd5R7Yq_AZO5LxOJ6dDymmcjHVxARBZjZfRlP9Ok4TYhRInhoCHioQAvD_BwE&amp;cid=CAASugHkaBNSJTh9DkzHCeuhNVIE4NpC4xXndmjbzD7ZDFieWiB8yqmzXHbmR7WRwEy1NgdMfDyf7DqiLBkH_SZOEaWqZC5qHSkcEIeofhaHT-EBjMfM-am_whAb0h7uNgKhuuSpMeTrfKQepk1sreg1Sm5aHayt-7ihWyL20KiTN4HGOVqrQvIl6aF0tcxcqDMB1PxcgyTAcJ7fLEmOis8G7DUay20W7UGwlp6DRgOCqitmyNsvRDD4kJqwv88&amp;cce=2&amp;category=acrcp_v1_71&amp;sig=AOD64_3pHOmzynYNjF4i_9DqL-Aylspchg&amp;q&amp;nis=4&amp;adurl&amp;ved=2ahUKEwiqzfCM-6CRAxVkXUEAHdf1EN4Q0Qx6BAgNEAE\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>Mailchimp<\/strong><\/a>,&nbsp;<a href=\"https:\/\/www.brevo.com\/\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>Brevo<\/strong><\/a>, and similar email service providers are designed for bulk and newsletter-style communication.&nbsp;<\/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\/how-to-avoid-mailchannels-blocks\/\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>How to Avoid&nbsp;MailChannels&nbsp;Blocks<\/strong><\/a>&nbsp;<br><a href=\"https:\/\/1grid.co.za\/knowledge\/mailchannels-errors-codes\/\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>MailChannels&nbsp;Error Codes and How to Fix Them<\/strong><\/a>&nbsp;<br><a href=\"https:\/\/1grid.co.za\/knowledge\/how-to-resolve-mailchannels-error-550-too-many-invalid-recipients\/\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>How to Resolve&nbsp;MailChannels&nbsp;Error 550 \u201cToo many invalid recipients\u201d<\/strong><\/a>&nbsp;<br><a href=\"https:\/\/1grid.co.za\/knowledge\/top-10-common-email-issues-and-how-to-resolve-them\/\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>Top 10 Common Email Issues and How to Resolve Them<\/strong><\/a>&nbsp;<br><a href=\"https:\/\/1grid.co.za\/knowledge\/?s=email&amp;ht-kb-search=1&amp;lang=\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>Email FAQs<\/strong><\/a>&nbsp;<br><a href=\"https:\/\/1grid.co.za\/knowledge\/settings-to-configure-your-1grid-email-accounts-across-devices\/\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>Settings to Configure Your 1-grid Email Accounts Across Devices<\/strong><\/a>&nbsp;<\/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>Understanding&nbsp;MailChannels email sending&nbsp;limits and how to&nbsp;apply these&nbsp;doesn\u2019t&nbsp;have to feel like a challenge with&nbsp;this&nbsp;easy-to-reference guide. Stuck?&nbsp;Contact our Support Team for&nbsp;clarity and&nbsp;guidance&nbsp;(<a href=\"https:\/\/1grid.co.za\/contact-us\/\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>https:\/\/1grid.co.za\/contact-us\/<\/strong><\/a>).&nbsp;We&#8217;re&nbsp;ready&nbsp;to see how we can help!&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>To protect your domain\u2019s reputation and ensure that your emails are delivered successfully,&nbsp;MailChannels&nbsp;applies email sending limits to every domain.&nbsp;These limits help prevent spam-like behaviour, reduce delivery failures, and keep your communication secure and reliable.&nbsp; This guide will explain each&nbsp;MailChannels&nbsp;limit in clear, easy-to-understand terms so you can send confidently, avoid interruptions,&#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":[1173,1194],"ht-kb-tag":[1629,336,1627,598,1628,857,1626],"class_list":["post-24521","ht_kb","type-ht_kb","status-publish","format-standard","hentry","ht_kb_category-email","ht_kb_category-email-troubleshooting","ht_kb_tag-bandwidth-limit","ht_kb_tag-email","ht_kb_tag-email-size-limit","ht_kb_tag-mailchannels","ht_kb_tag-recipient-limit","ht_kb_tag-restriction","ht_kb_tag-sending-error"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v22.0 - 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