[Sussex] Neat MTA trick

[Jon Fautley]

Alan F wrote:

> Had a thought this morning about another way to curb the deluge of spam 
> I get :)
> 
> I have now setup Postfix and BIND so that mail sent to any subdomain of 
> my domains is accepted and sent to my maildir, the advantage being that 
> if an address gets abused I can blackhole it with an MX record, so my 
> MTA/spam/antivirus doesn't have to deal with it. Now that I've started 
> using it, should be interesting to have a clear idea of where my spam 
> comes from... As you can see, I've tried this for my SLUG subscription 
> (I've always had a suspicion that my address got harvested from the 
> lug.org.uk archives...)

Same principal as the -suffix stuff that Qmail pioneered (iirc).

my mailserver is configured to have localpart+anything-blah or 
localpart-anything or localpart+anything to goto $localpart, so I can 
filter on that, i.e. have 
jon-slug at ilovetobespammedwithcrapaboutthesizeofmytodgerwhilealsobeingsoldstocksandotherrandomcrapthatimneverlikelytopurchaseinmylifeever.com
and filter on jon-slug :)


Jon

-- 
Jon Fautley
3a IT Limited - Open Source Answers
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