I like install one antivirus system on my DA server on centos 4.4, i try the guide
on this forum but d'not work i think is old , so is any way to install one antivirus on this system?
The SpamBlocker3 beta exim.conf file with support for ClamAV, found here, works for many of us, and the README files contain links to working instructions for installing it.
The email is refused. Most of the time the sender is a spambot. If it's a real sender, then the senders mail server should report back to the sender why your server refused the email.