SMTP: Invalid response code received from server (code: 451, response: Temporary local problem – please try later)

Posted: June 12, 2013 in Webmail

When I tried to send mails via rouncube, I got the following error message:

==

There was an error sending your message: Failed to add recipient: xxxxxx@gmail.com [SMTP: Invalid response code received from server (code: 451, response: Temporary local problem – please try later)]

==

This happens only in roundcube.

How to fix this issue: If you have access on shell open the /etc/localdomains with your favorite text editor then include the domain name having that error and save.

Fixed!

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