Re: [Exim] spammer exploit - using unroutable address

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Author: Kevin Reed
Date:  
To: exim-users
Subject: Re: [Exim] spammer exploit - using unroutable address
hanasaki said:
> I have seen some emails come in addreassed to:
>     [somehex].[somehex]@mydomain.com
> with a Return-path: of someone who is a target of spam.  Exim is giving
> the error "Unroutable Address" and notifying the email at the
> Return-path.  ie: the target of spam.  How can exim be configured to
> kick this email back at the sender instead of the faked sender in the
> Return-path?


If done properly, they should not be bouncing at all, just not accepted
which would return it back to where it came from.

Provide a sample of the log entry and maybe what ACL you are using.

--
Kevin W. Reed - TNET Services, Inc.
Unoffical Exim MTA Info Forums - http://exim.got-there.com/forums