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Re: Rejecting spam and viruses at SMTP time
From: Paul Johnson (baloo
ursine.ca)
Date: Wed May 03 2006 - 01:17:14 CDT
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On Tuesday 02 May 2006 21:53, Magnus Bäck wrote:
> On Wednesday, May 03, 2006 at 04:46 CEST,
>
> Paul Johnson <baloo
ursine.ca> wrote:
> > I'm looking to replace my existing exim setup with postfix for ease of
> > maintainability reasons. One thing I would like to be able to do in
> > Postfix that I currently do in Exim is scan for spam and viruses with
> > SpamAssassin (spamd called by spamc for the receiving user) and clamav
> > (clamd) and reject it with a 500 after DATA (and I am aware that this
> > is counter-indicated by the RFCs).
>
> Your idea is fundamentally flawed. How are you supposed to handle
> multi-recipient messages? You can only give one status code per message.
In exim, I defaulted to nobody for multiple recipient stuff to avoid it
getting messy, since few messages are multiple recipient coming from the
outside world at this site.
> > Amavis seems like a good start, but it doesn't call spamc for the
> > appropriate user.
>
> Is that really important?
Yes. No other good way for users to be able to configure and train their spam
filters.
--
Paul Johnson
Email and IM (XMPP & Google Talk): baloo
ursine.ca
Jabber: Because it's time to move forward http://ursine.ca/Ursine:Jabber
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