I have just received two confusing non-delivery reports from users. It looks
as if Exim is attempting delivery to an address other than the one they typed
in the To header. Here's an example, where local-part "lpujh97" seems to have
become "lpujh":
> A message that you sent could not be delivered to all of its
> recipients. The following address(es) failed:
> lpujh@???:
> SMTP error from remote mailer after RCPT TO:
> <lpujh@???>:
> host sumh1.reading.ac.uk [134.225.16.4]:
> 550 Unknown local user 'lpujh'
> ------ This is a copy of the message, including all the headers. ------
> Return-path: <lpyrrf@???>
> Received: from hermes.nottingham.ac.uk [128.243.101.179]
> by nottingham.ac.uk with esmtp (Exim 1.73 #1)
> id 0xb4xs-0002tz-00; Thu, 27 Nov 1997 14:30:48 +0000
> Received: from CCW0F/SpoolDir by hermes.nottingham.ac.uk (Mercury 1.32);
> 27 Nov 97 14:30:47 GMT0BST
> Received: from SpoolDir by CCW0F (Mercury 1.32); 27 Nov 97 14:30:44 GMT0BST
> From: <lpyrrf@???>
> To: lpujh97@???
> Date: Thu, 27 Nov 1997 14:30:34 GMT0BST
> Subject:
> Priority: normal
> X-mailer: Pegasus Mail v3.40 (NDS)
Another example had recipient "hilary.neale.@strath.ac.uk" in the headers,
yet a non-delivery report for "hilary.neale@???".
Both users were using Pegasus as their mail client.
My guess is that both users have done some local editing corrections to a
mistyped address and that the resulting non-printing characters are not being
shown but are affecting the address finally used. Unfortunately, the logs
don't show whether non-printing characters were originally present, but just
record the failed delivery to the final, incorrect, address.
Any ideas?
--
David Osborne david.osborne@???
Cripps Computing Centre tel: +44 (0)115 951 3397
(and Department of Geography) fax: +44 (0)115 951 3358
University of Nottingham
Nottingham NG7 2RD, UK http://www.nottingham.ac.uk/~cczdao/
--
*** Exim information can be found at
http://www.exim.org/ ***
