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wot no <> magic token?

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s...@cam-orl.co.uk

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Sep 10, 1992, 12:42:29 PM9/10/92
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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: postm...@cam-orl.co.uk
smail-mail: <>

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