On 06/04/04 10:14 +0530, Raj Mathur wrote:
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> So I though I'd be l33t and scan all my incoming mail for viruses at
> point of entry.  Second step of being l33t is being lazy, so just
> enabled clamav-milter, since all the packages were already installed
> on my state-of-the-art bleeding-edge Red Hat 9 system and was ready to
> go.
Discard a large part of your incoming suspicious filetypes in your MTA
itself. 

> Initially this worked like a charm -- no more incoming viruses, just
> terse notifications of the form ``Found virus, blocked virus''.
> Yippee, I thought to myself, this rocks!
> 
> Unfortunately time, with its propensity to remove rose-tints from
> pictures, had a different story to tell...
> 
> First of all, clamav-milter doesn't quarantine messages, it just
> bounces them back to the sender.  Now this has two issues; firstly,
Evil. Turn off the bounces. Viruses should be discarded.
<snip>
> Secondly, clamav-milter is ghastly slow.  Sloooooooow.  It takes up to
> a minute to deliver one message to me, and for me that's completely
> unacceptable -- I get ~400 messages a day in my inbox and watching
> fetchmail crawl in a Konsole window is too painful to bear.
Which is why you filter after queueing and then discard. Or get a faster
CPU. Or parallelise your mail downloads in some form. Or just filter at
the MX itself.

Devdas Bhagat


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