[EML1.05] Why does my email bounce with '550 relay not permitted'?

This usually happens because the nameservers on the affected domain have been changed to make the domain work with our servers, but the domain itself has not been transferred in. There is a brief period when some remote mail servers direct mail according to the new MX records, but the local mailserver is still seeing the old MX records. This causes the mail server to reject mail until the old records expire. That usually happens within 24 hours. Domains which are fully transferred by-pass the MX record lookup and so are not affected by this problem.

This error could also be because you have not selected "My Outgoing Server Requires Authentication", or some variation on that depending on the email client software being used, in your settings. You can select it to use the same settings as the incoming mail server.

If you continue to receive this error after 24 hours (allowing for nameserver updates and DNS propagation), please contact Support.

Was this answer helpful?

 Print this Article

Also Read

[EML1.11] Mail doesn't seem to be forwarding when I use the email forwarding option. What can be causing this?

Some ISP do not allow the automatic forwarding of emails. AOL and Gmail are known service...

[EML1.13] The amount of Spam I'm getting has suddenly increased (with Junk Mail filters enabled), why is that?

The principal reasons for suddenly getting more spam despite the Junk Mail Filter being active...

[EML1.17] Outlook won't save my Exchange mailbox password

In some cases, Outlook will not save an Exchange mailbox password, even when the 'save password'...

[EML1.03] I can't send email, but I can receive it.

There is a possibility that your ISP is blocking port 25. Providers like AOL block this to...

[EML1.15] Why have my mail/folders disappeared from webmail?

Occasionally, the thread view in Webmail will make emails apparently disappear - if you disable...