🚀 go-pugleaf

RetroBBS NetNews Server

Inspired by RockSolid Light RIP Retro Guy

Article View: mail.uk-sendmail-workers
Article #23

wot no <> magic token?

#23
From: svp
Date: Thu, 10 Sep 1992 16:42
24 lines
1334 bytes
Running uk-sendmail 2.1 (under sunos 4.1.2) it seems that /usr/lib/sendmail
core dumps if an incoming SMTP connection (eg from JIPS) specifies a null name
in the sender in the envelope - ie if it opens up with :-

 MAIL FROM: <>

Apparently this is just the thing to do when delivering error reports (rfc822?)
and a local smail site has been filling our /usr/spool/mqueue with
zero-length queue-files and an 8Mb corefile every 15 minutes. Good fun.

SUN's sendmail.cf files all seem to have the smail-proofing rules :-

| # handle "from:<>" special case
| R$*<>$*                 $@@                    turn into magic token
|  ...
| R@                      $@$n                   handle <> error addr

but as far as I can see, standard uk-sendmail doesn't seem to buld this in.

Has anyone fixed this already please?

Steve Platt
email:      postmaster@cam-orl.co.uk
smail-mail: <>
Technical Details
Message-ID: <797.9209101642@spinach.cam-orl.co.uk>
Path: arc1-ca.pugleaf.net!sparky!uunet!mcsun!uknet!glasgow!daemon

Show Full Headers
Complete Article Headers
Path: arc1-ca.pugleaf.net!sparky!uunet!mcsun!uknet!glasgow!daemon
From: svp@cam-orl.co.uk
Newsgroups: mail.uk-sendmail-workers,comp.mail.sendmail
Subject: wot no <> magic token?
Message-ID: <797.9209101642@spinach.cam-orl.co.uk>
Date: 10 Sep 92 16:42:29 GMT
Sender: uk-sendmail-workers-request@cs.hw.ac.uk
Organization: Glasgow University Computing Science Dept.
Lines: 24
Approved: usenet@dcs.glasgow.ac.uk
X-Mailer: mail-news 2.0.5