Sendmail - Unknow User.

[Alexander Dalloz]

Am Mi, den 07.12.2005 schrieb Neil Marjoram um 14:03:

> I have a small problem with sendmail.
> I have a number of students working on the configuration of some Fedora 
> systems as part of an MSc course we run. One of them has an interesting 
> problem I can't fathom out at all. When he sends a mail meesage to a 
> local user he has created sendmail returns the error dsn=5.1.1, 
> stat=User unknown. (we use command line mail to send the email) When I 
> create a user on the same box and send a mail there is no problem. I am 
> not sure how the student  created the user but I think it was with a 
> command like this : useradd -c 'works clerk--Jenny Rawring' -d 
> /workspace/home/Jenny/Jenny -s /bin/bash Jenny.
> You can su to the user, login from outside and send a mail from the user 
> to root, I can't find anything in the passwd etc. files that looks out 
> of place.

> Neil.
> 
> Extract of maillog at loglevel 64 :

> Dec  7 12:03:32 yoxford sendmail[31613]: jB7C3WxS031613: to=Arthur, 
> ctladdr=root (0/0), delay=00:00:00, xdelay=00:00:00, mailer=relay, 
> pri=30031, relay=[127.0.0.1] [127.0.0.1], dsn=2.0.0, stat=Sent 
> (jB7C3W14031614 Message accepted for delivery)
[...]
> Dec  7 12:03:33 yoxford sendmail[31619]: jB7C3W14031614: alias 
> <Arthur at yoxford.adastral.ucl.ac.uk> => Arthur
> Dec  7 12:03:33 yoxford sendmail[31619]: jB7C3W14031614: alias Arthur => 
> Arthur
> Dec  7 12:03:33 yoxford sendmail[31619]: jB7C3W14031614: to=Arthur, 
> ctladdr=<Arthur at yoxford.adastral.ucl.ac.uk> (8/0), delay=00:00:01, 
> mailer=local, pri=120353, dsn=5.1.1, stat=User unknown
> Dec  7 12:03:33 yoxford sendmail[31619]: jB7C3W14031614: 
> to=<Arthur at yoxford.adastral.ucl.ac.uk>, delay=00:00:01, mailer=local, 
> pri=120353, dsn=5.1.1, stat=User unknown
> Dec  7 12:03:33 yoxford sendmail[31619]: jB7C3W14031614: jB7C3XMc031619: 
> DSN: User unknown

> Neil Marjoram

Capital letters in UNIX usernames ... tse ;) Nothing to wonder about;
see i.e. the Sendmail FAQ:

http://www.sendmail.org/faq/section4.html#4.17

Alexander


-- 
Alexander Dalloz | Enger, Germany | GPG http://pgp.mit.edu 0xB366A773
legal statement: http://www.uni-x.org/legal.html
Fedora Core 2 GNU/Linux on Athlon with kernel 2.6.11-1.35_FC2smp 
Serendipity 15:08:00 up 2 days, 19:45, load average: 0.22, 0.18, 0.08 
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