Blocking Mail from Invalid Email Addresses

Kai Schaetzl maillists at
Wed Apr 29 09:48:31 IST 2009

Johnny Stork wrote on Tue, 28 Apr 2009 18:03:32 -0700:

> I am running MS 4.72.5 on CentOS 5x. I also run milter-greylist and 
> smf-sav for sender verification but I am not sure its working properly 
> since the email address below (tatrixes_1996 at does NOT exist 
> and in fact there are only 2 valid email addresses on my mail server.

I don't understand. Is that server your only mail server? If yes, then you 
don't need a milter to stop *sending* to invalid recipients on your side. 
You simply do not create them (no catch-all). sendmail won't deliver, but 
reject (and not bounce and not fill up your queue).


Kai Schätzl, Berlin, Germany
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