Virtual domains, Mailbox unknown

Henrik Troeng henrik at
Mon Feb 16 07:17:03 EST 2004

Hi all,


I have a problem, I use multiple domains but for users I create with the
domain specified, for example postmaster at it can't receive
mail. When I try to send to this user I get back a reply from Mailer-Daemon
that says "550-Mailbox Unknown". Either there is no mailbox associated
550-name or you don't have authorization to see it".


If I create the user "user.postmaster" it works fine, but the user
"user.postmaster at" wont accept any mail.


Here is my imapd.conf:


configdirectory: /var/imap

partition-default: /var/spool/imap

admins: cyrus root Henrik

sasl_pwcheck_method: saslauthd

sasl_mech_list: PLAIN LOGIN

sendmail: /usr/sbin/sendmail


virtdomains: yes



I have set up the domain in the local-host-names config file for sendmail. 


Here is the error message:



The original message was received at Mon, 16 Feb 2004 12:47:04 +0100

from []


   ----- The following addresses had permanent fatal errors -----


    (reason: 550-Mailbox unknown.  Either there is no mailbox associated

with this)

    (expanded from: <postmaster at>)


   ----- Transcript of session follows -----

... while talking to localhost:

>>> DATA

<<< 550-Mailbox unknown.  Either there is no mailbox associated

with this

<<< 550-name or you do not have authorization to see it.

<<< 550 5.1.1 User unknown

550 5.1.1 root... User unknown

<<< 503 5.5.1 No recipients








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