[Exim] Problem with unknown users

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著者: Hartmut Hembrock
日付:  
To: exim-users
題目: [Exim] Problem with unknown users
Hello list,

Exim 4.12 is running fine here with SA, mysql-lookups and ASMTP authentification. I only have a little problem with unknown users, where I don't have an idea to search for the mistake in my configuration. Maybe it's a fault in the way I'm thinking of the problem - because this is my first 4.x setup.

So, let me describe:
When a non-local user sends mail to a non-existing user on the system he get's an error in return:

 unknownuser@???
    SMTP error from remote mailer after RCPT TO:<unknownuser@???>:
    host naiad.hembrock.de [217.160.175.19]: 550 unknown user


When the same ist done by an authentificated local user, exim breaks the connection and the mail client thinks it was not able to deliver the mail (and keeps it in the outbox):

Client-Log:
SMTP: 08:46:58 [rx] 220 naiad.hembrock.de ESMTP Exim 4.12 Mon, 14 Apr 2003 08:48:30 +0200
SMTP: 08:46:58 [tx] EHLO hembrock.de
SMTP: 08:46:58 [rx] 250-naiad.hembrock.de Hello ((my connection))
SMTP: 08:46:58 [rx] 250-SIZE 52428800
SMTP: 08:46:58 [rx] 250-PIPELINING
SMTP: 08:46:58 [rx] 250-AUTH CRAM-MD5 LOGIN
SMTP: 08:46:58 [rx] 250 HELP
SMTP: 08:46:58 [tx] AUTH CRAM-MD5
SMTP: 08:46:58 [rx] 334 crushingonthekeyboardlooksbetterthanthis
SMTP: 08:46:58 [rx] 235 Authentication succeeded
SMTP: 08:46:58 [tx] MAIL FROM: ((me))
SMTP: 08:46:58 [rx] 250 OK
SMTP: 08:46:58 [tx] RCPT TO:<unknownuser@???>
SMTP: 08:46:58 [rx] 550 unknown user
SMTP: 08:46:58 Fehler - Unerwartete Daten empfangen
((means: Error - received unexpected data))

Exim-Log:
2003-04-14 08:48:30 H=((my connection)) (hembrock.de) [((my IP))] F=((me))
rejected RCPT <unknownuser@???>: Unrouteable address
2003-04-14 08:48:31 unexpected disconnection while reading SMTP command from ((my connection)) (hembrock.de) [((my IP))]

config (excerpt from ACL):
  accept  domains       = +local_domains : +local_domains_extramx
          endpass
          message       = unknown user
          verify        = recipient


  accept  domains       = +relay_to_domains
          endpass
          message       = unrouteable address
          verify        = recipient


The relay_to_domains-list is empty.

It's no problem with the mail client, others show the same behaviour.

Why gets the client "unknown user", but the exim-log shows "unroutable address"? Where to look?

Thank's in advance.

Hartmut.

--------------------------------------------------
HEMBROCK IT-CONSULTING
Hartmut Hembrock
mailto:info@hembrock.de
--------------------------------------------------
Talstraße 7
48477 Hörstel
Tel. 05459/93300
Fax 05459/933022