553 sorry, that domain isn’t in my list of allowed rcpthosts (#5.7.1)

When sending an email through our mail servers you may get an error that pops up informing you that you are unable to send the email due to the following: “553 sorry, that domain isn’t in my list of allowed rcpthosts (#5.7.1)”

This is normally caused by the check box in the account settings: My Server Requires Authentication not being checked. The email client attempts to send the email to the server without providing a password – Hence the server replies that you are not allowed to relay without the correct authentication.

To resolve the issue, you simply need to check the checkbox next to “My Server Requires Authentication” in your email clients settings. In Outlook, it looks like the following:

In other email programs such as Apple Mail you may just need to enter your username (full email address) and email password for the Outgoing Mail Server (SMTP)

  • 0 Users Found This Useful
Was this answer helpful?

Related Articles

iPanel Email Settings

If your email services are hosted on the iPanel platform then you need to use the following email...

cPanel Email Settings

If your email services are hosted on the cPanel platform then you need to use the following email...

Used Storage Emails

Have you recently recieved an email that is similar to this:  yourdomain.com : Storage...

iPanel Email Settings

If your email services are hosted on the iPanel platform then you need to use the following email...

What's the difference between POP and IMAP?

The Difference between POP and IMAPPOP and IMAP allow people to get access to their email from...