The “Recipient Address Rejected” error usually indicates that the recipient’s email address cannot be verified by the receiving mail server. In most cases, the issue is caused by an incorrect email address or a problem with the recipient’s mailbox rather than your own email account.
Following the steps below will help you identify the cause and get your email delivered successfully.
This guide will help you resolve this error when sending emails from your 1-grid email account.
What This Means
The “Recipient Address Rejected” error means the receiving mail server has refused to accept the email because it could not validate the recipient’s email address.
This commonly happens when:
- The email address contains a spelling mistake.
- The domain name is incorrect.
- The recipient’s mailbox has been disabled, suspended, or deleted.
- The recipient’s mail server is rejecting mail for another reason.
In most cases, this is not an issue with your own email account or hosting service.
Steps To Fix the “Recipient Address Rejected” Email Error
Step 1: Check the Recipient’s Email Address
Carefully review the recipient’s email address for spelling mistakes.
Pay particular attention to:
- Missing letters
- Extra spaces
- Incorrect punctuation
- Incorrect placement of periods or hyphens
Even a single incorrect character can cause the email to be rejected.
Step 2: Verify the Domain Name
Ensure the email domain is correct.
For example:
Incorrect domain extensions are one of the most common causes of this error.
Step 3: Confirm the Recipient’s Email Address
If possible, contact the recipient using another method and ask them to confirm that:
- The email address is correct.
- Their mailbox is active.
- Their mailbox has not been suspended or disabled.
Step 4: Send a Test Email
After confirming the address, send another email.
If it sends successfully, the issue was likely caused by an incorrect or inactive recipient address.
Step 5: Check the Full Error Message
If the error continues, review the complete bounce-back message.
It may provide additional information, such as:
- Mailbox not found
- User unknown
- Domain does not exist
- Recipient rejected by server policy
These messages can help identify the exact cause. Explore our SMTP Error Codes guide for more error codes.
Important Things to Know
- This error usually relates to the recipient’s mailbox, not your own.
- Resending the email repeatedly will not resolve an incorrect email address.
- Temporary server issues on the recipient’s side may also cause email rejection.
- A rejected recipient address does not necessarily indicate a problem with your 1-grid hosting or email service.
- Some organisations intentionally reject emails from unknown or incorrectly configured senders as part of their security policies.
Before You Move On
Before contacting support, confirm that:
- The recipient’s email address has been checked carefully.
- The domain name is correct.
- The recipient has confirmed their mailbox is active.
- You have reviewed the full bounce-back error message.
- You’ve attempted to send the email again after correcting any mistakes.
Common Mistakes to Avoid
- Typing the recipient’s email address incorrectly.
- Using the wrong domain extension (such as .co.za instead of .com).
- Assuming the issue is with your own mailbox.
- Ignoring the details contained in the bounce-back message.
- Sending repeated emails without verifying the recipient’s address.
If This Didn’t Work
If you’re still receiving the “Recipient Address Rejected” error, please gather the following information before contacting 1-grid Support:
- Your domain name
- Your email address
- The recipient’s email address (if you’re comfortable sharing it)
- The complete bounce-back message
- A screenshot of the error
- The date and time the email was sent
Providing this information will help us investigate the issue more efficiently.
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FAQs
What does “Recipient Address Rejected” mean?
It means the receiving mail server could not verify or accept the recipient’s email address.
Is there something wrong with my email account?
Usually not. This error most often relates to the recipient’s email address or mailbox.
Can a suspended mailbox cause this error?
Yes. If the recipient’s mailbox has been disabled, suspended or removed, the receiving server may reject the email.
Should I keep trying to send the email?
Only after you’ve confirmed the recipient’s email address is correct. Repeated attempts won’t resolve an invalid address.
Can security settings cause this error?
Yes. Some organisations reject incoming emails because of security policies, spam protection or mail server restrictions.
What if other emails send successfully?
If emails to other recipients are sent without issue, the problem is likely isolated to the recipient’s mailbox or email address.
Empowering Insight
Many email delivery errors are caused by simple typing mistakes or inactive recipient mailboxes rather than problems with your own email account. Verifying the recipient’s details first often resolves the issue in just a few minutes.
Need Additional Support?
If you’ve completed the checks above and the “Recipient Address Rejected” error persists, the 1-grid Support team is here to help.
Contact us with the bounce-back message, recipient details, and screenshots available so we can investigate the issue as quickly as possible.