"The mind of a Mad Tech!"

If I compose and send a message with webmail the following error appears:

There was an error sending your message: unable to add recipient
[[email protected]]: Invalid response code received from server.

Please add the following record to Server > Mail > White list in Plesk CP:

127.0.0.1 /8

If you are not able to add that record, you can also try 127.0.0.1/255.255.0.0 or 127.0.0.1/255.0.0.0

If the record is already there, you may want to remove it and then add it again. This normall is the case if you have reinstalled any of the courier/imap components on the server (This would affect the whitelist). Ultimately, if you nothing else works, you can also add the actual ip/ip’s of the server as well.

Tags: horde, imp, Plesk, webmail

This entry was posted on Wednesday, February 4th, 2009 at 7:46 am and is filed under Plesk. You can follow any responses to this entry through the RSS 2.0 feed. You can leave a response, or trackback from your own site.