[Raw Msg Headers][Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: smtp strangeness
Sorry about replying to my own message. I found the problem.
My mail hub was configured to run smtpserver with all "ftveR"
checks, but the gateway was generating "From: <>" lines.
Getting rid of the "From" checks fixed the problem.
But then this points to some questions:
- zmailer should never generate "From: <>" lines, because this
might cause mails that cannot be delivered even to another
zmailer server, which is a rather silly situation.
- smtp should see the "554 illegal address syntax" error and
give up; instead, it continues and tries to send a "MAIL FROM"
command. (Well, at least the spammers seem to give up when
confronted with a 554...)
These are my thoughts; someone might want to correct me if I'm
obviously off the mark here :)
--
Ambrose C. Li <acli@mingpaoxpress.com> / Please use home address
Programmer-analyst / <acli@acli.interlog.com>
Ming Pao Newspapers (Canada) Ltd. / for private mail
+1 416-321-0088 1355 Huntingwood Drive, Scarborough ON, Canada M1S 3J1