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Email Problem, User unknown in virtual mailbox table

Discussion in 'Plesk 10.x for Linux Issues, Fixes, How-To' started by DonnaC, Aug 9, 2011.

  1. DonnaC

    DonnaC Guest

    I wonder if anyone can help me please.

    I bought a new Cent OS 5 (1and1) server which has web-space for two main domains hosted on it, as two different hosting Accounts in Parallels SB Plesk 10.2. One domain I set up with a local email account (on the server) in Plesk, and for the second domain I use a Google Apps Gmail account for external email.

    The problem is that when I try to send email from my webmail in Plesk to the other domain, the moment I click the "Send" button a popup error appears saying:

    SMTP Server rejected email. Returned:550 5.1.1 Recipient address rejected: User unknown in virtual mailbox table

    I also tried sending mail using PHP, and the error I get there is:

    Error: Failed to add recipient
    [SMTP: Invalid response code received from server (code: 550, response: 5.1.1 :
    Recipient address rejected: User unknown in virtual mailbox table)]

    Could anyone point me in the direction of a solution please? Is it because I have the other domain's web-space hosted on the server that it is looking for it locally, or is it something completely different?

    I'm concerned I may have got something wrong in the configuration when I set everything up.

    Update: The problem has now resolved, although I'm not sure what has changed.
    Last edited by a moderator: Aug 9, 2011
  2. IgorG

    IgorG Forums Analyst Staff Member

    Oct 27, 2009
    Likes Received:
    Novosibirsk, Russia
    /usr/local/psa/admin/sbin/mchk --with-spam should help with it.
  3. aammee

    aammee Guest

    Hi Igor,

    I have done that, here is the output, but it does not resolve the problem. Any other pointer? I am on Ubuntu 10.04 LTS and Plesk 10.4.4