Pavel Ganelin writes:
> I looked through a lot of E-mail qmail archive discussing it, but I did not
> see any solution.
>
>
> We have domain A and run qmail-smtp server to relay E-mails for domain B.
>
>
> When a user X from domain B sends a message to the wrong address using our
> qmail server
> The messages bounced and qmail sends a message to X@B with
> From: <>
> The SMPT server on B refuses to accept it (null from, spam filtering in
> action I assume) and it ends double bouncing to me as postmaster@A.
>
>
> I saw a lot of messages that I should mail postmaster@B a copy of RFC :-)
My usual solution for this situation is to blacklist the idiots with a very
descriptive error message:
517-Your mail server, [hostname] violates RFC 822.
517 See <URL:ftp://ftp.isi.edu/in-notes/rfc822.txt>
My response to any subsequent inquiries is that the sending mail server has
a problem. If necessary, I am always ready to launch into a very extensive
discussion regarding fine points of RFC 822, RFC 821, RFC 2045, and other
favorite topics of mine.
Sooner or later, the problem usually fixes itself :-)
--
Sam
