I'm now testing ZCS 4.5.4 opensource edition for my organization and I found a problem.

Whe use an http proxy server with user authentication to access internet and looking inside the freshclamd.log I found that the antivirus is not updating virus definitions. This is the a part of the log showing the error:

freshclam daemon 0.88.7 (OS: linux-gnu, ARCH: i386, CPU: i686)
ClamAV update process started at Fri May 18 13:10:55 2007
WARNING: Your ClamAV installation is OUTDATED!
WARNING: Local version: 0.88.7 Recommended version: 0.90.2
DON'T PANIC! Read http://www.clamav.net/faq.html
nonblock_connect: connect timing out (30 secs)
nonblock_connect: connect timing out (30 secs)
nonblock_connect: connect timing out (30 secs)
nonblock_connect: connect timing out (30 secs)
nonblock_connect: connect timing out (30 secs)
nonblock_connect: connect timing out (30 secs)
connect_error: getsockopt(SO_ERROR): fd=0 error=110: Connection timed out
nonblock_connect: connect(): fd=0 errno=103: Software caused connection abort
nonblock_connect: connect timing out (30 secs)
Trying again in 5 secs...


I also tried to modify the file /opt/zimbra/clamav/etc/freshclam.conf decommenting the lines

#HTTPProxyServer
#HTTPProxyPort
#HTTPProxyUsername
#HTTPProxyPassword

but it does not function.


What can I try to let the Clamav (and Spamassassin) update correctly?