OSEC

Neohapsis is currently accepting applications for employment. For more information, please visit our website www.neohapsis.com or email hr@neohapsis.com
 
null SMTP client which can handle rejection?

From: /dev/rob0 (rob0gmx.co.uk)
Date: Sat Nov 19 2005 - 10:16:59 CST


This is slightly OT, sorry. Probably none of us like to be rejected. I
have an old (circa 2003) install of nullmailer who used to relay to
qmail, which never rejected anything it sent. Happy nullmailer.

The nullmailer sends mail from an internal-only Web form which appends
domain, and, sadly, is not able to validate addresses. So if a user
mistypes his/her username (or puts in userdomain) nullmailer sends to
a bad address.

Quite some time back the nullmailer relay was changed to Postfix, and
the bad addresses are rejected, of course. Sad nullmailer. But it
doesn't take "go away" for an answer; it keeps trying with all the
rejected mails. Recently a slew of these were queued, filling the log
partition and causing a DoS.

Is there a null SMTP client which would deliver rejected mail to a dead
letter box and remove it from the queue?
--
    mail to this address is discarded unless "/dev/rob0"
    or "not-spam" is in Subject: header