On Wed, 6 Sep 2006, SM wrote:

> At 12:44 06-09-2006, [EMAIL PROTECTED] wrote:
> >I do think that there is too much of a danger of denial of service attacks
> >or mail failure due to the milter crashing if you scan your mail during
> >the SMTP phase. I have regularly seen ISPs that can't accept mail because
> 
> Are you going to accept, then bounce the mail if it contains a 
> virus?  That's not a good idea as the sender address may be forged.

I agree.  MailScanner is totally configurable in this regard, and is 
normally set to trap known viruses and inform neither "sender" nor 
recipient.  If a virus is rejected at SMTP time then the sending server is 
likely to try to deliver that virus to the envelope sender, which is not 
at all friendly.  Better to discard viruses than to reject them.

Regards

Jim Holland
System Administrator
MANGO - Zimbabwe's non-profit e-mail service
Tel: (263-4)-334111/304471


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