Any Way to filter backscatter?

Julian Field MailScanner at
Fri Jan 25 17:29:19 GMT 2008

Hash: SHA1

Alex Neuman wrote:
> Implement milter-null and/or MailScanner's built-in functionality. The 
> milter-null solution works with sendmail (don't know about your 
> particular setup) and blocks at the MTA level (which saves you some 
> resources),
Milter-null works very well, and should work with recent Postfixes too, 
as they have support for sendmail's milters. Definitely the 
lightest-weight solution.
> the built-in MailScanner function does the same at the expense of 
> having to receive the message first.
which can be quite expensive if you have a lot of them coming in. 
Personally I use the MailScanner function (well I would, wouldn't I? :-) 
but I used to get perfectly good results from using milter-null. It 
worked a treat.

> On Jan 25, 2008, at 9:41 AM, Lance Haig wrote:
>> One of my users has a problem where he has been made the from address in
>> a spam campaign.
>> he is now getting loads of could not deliver messages. is there  way to
>> filter these out?
>> Thanks guys
>> Lance
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- -- 
Julian Field MEng CITP CEng
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