I have a Windows 2003 server running Plesk 8.3, Mailenable with Horde IMP webmail client. I have installed Anti-Spam SMTP Proxy (ASSP) (http://www.asspsmtp.org/
) on my server to counter SPAM. I have configured it with the instructions found here - http://www.hmailserver.com/forum/vie...hp?f=12&t=1881
. This configuration works perfectly apart from one issue - whenever I try to send emails from my Horde IMP webmail interface, I get an error saying "unable to set sender to [emailaccount at domain]". If I deactivate ASSP everything works fine.
I believe this is not an issue with ASSP since no one's complaining on ASSP forums. I posted this issue there and someone suggested it had something to do with how Horde IMP tries to send emails. I posted this to Horde's mailing list too but no one ever answered.
Can someone provide any insight on what could be going wrong?