554 sending error in custom Squirrelmail


#1

I installed my own Squirrelmail per these instructions:

http://wiki.dreamhost.com/Installing_your_own_SquirrelMail

Sending mail doesn’t work though. Here’s the error I get:

Transaction failed
554 blah@blah.com: Recipient address rejected: Access denied

Am I missing something in the config.php file perhaps? Any thoughts would be greatly appreciated.