[Mimedefang] compare mimedefang to mailscanner

[Kees Theunissen]

On Tue, 16 Jan 2007, John Rudd wrote:

> 3) MIMEDefang lets you specify the order of checks. With MailScanner, you
> HAVE to do SpamAssassin first, and Virus Scanning last. That means you're
> running the very CPU expensive SpamAssassin checks on viruses. With
> MIMEDefang you can set the order just by re-arranging code in your
> mimedefang-filter.

I'm scanning first for viruses with clamav. After that I use the
expensive SpamAssassin checks only on non virus mails.
That's the order you prefere.
I'm not sure that this is cheaper.
I estimate roughly that I receive about 100 times more spam than
viruses. That means that I'm scanning about 100 spam mails (that
could already have been detected by SpamAssassin, and that still
have to be checked by SpamAssassin anyway) for viruses just to
block a single virus. This 100 to 1 ratio is also expensive.

Regards,

Kees.

-- 
Kees Theunissen
F.O.M.-Institute for Plasma Physics Rijnhuizen, Nieuwegein, Netherlands
E-mail: theuniss at rijnh.nl,  Tel: (+31|0)306096724,  Fax: (+31|0)306031204