So mail stopped this morning. Its been a while since I upgraded the virus checker and ClamAV stopped supporting the version that I was using. This halted delivery for some reason. Upgrading ClamAV. Uninstall cd [oldinstalldir] ./configure sudo make uninstall Install wget [newversion] tar zxf [newversion] cd [newversion] ./configure --with-user=[myvirususer] make sudo make install ldconfig Configure sudo vi /usr/local/etc/clamd.conf # comment out example # use the same socket as before (/tmp/clamd) User vscan LocalSocket /tmp/clamd sudo vi /usr/local/etc/freshclam.conf # comment out example Start up sudo freshclam sudo /etc/init.d/clamav start http://wiki.clamav.net/bin/view/Main/InstallFromSource