[clamav-users] clamav ignoring HTTPProxyServer/HTTPProxyPort in freshclam.conf?

[Kevin Kretz]

I posted earlier this month, but maybe my subject wasn't informative enough.

We use ClamAV as part of Zimbra.  In freshclam.conf I have HTTPProxyServer and HTTPProxyPort set.  But I still see DNS lookups to hostnames like

daily.21375.77.1.0.AC122E0A.ping.clamav.net
daily.21375.77.1.0.AC122E0A.ping.clamav.net
daily.21375.77.1.0.AC122E0A.ping.clamav.net
daily.21375.77.1.0.AC122E0A.ping.clamav.net
daily.21375.77.1.0.AC122E0A.ping.clamav.net

Can someone explain what these lookups are for please?  

Thanks

Kevin