Postfix + ClamAV + SpamAssassin + Amavisd-New
As we all know, ClamAV versions older than 0.95 stopped working yesterday. This was announced some time ago by ClamAV, but caught most people by surprise when mail flow stopped cold on our email servers. ClamAV pushed down an update that broke older versions, forcing sysadmins to either disable Antivirus, or update ClamAV to a more recent version.
We were running a very old version of ClamAV, 0.91.2-1~volatile1, from 2007. An upgrade was long overdue anyway. Here are 2 ways to fix it.