Results 1 to 3 of 3

Thread: Mailbox full of "Undelivered Mail Returned To Sender"

  1. #1
    matthewi is offline Starter Member
    Join Date
    Aug 2011
    Rep Power

    Exclamation Mailbox full of "Undelivered Mail Returned To Sender"

    My mailbox is filling up with messages that contain subject "Undelivered Mail Returned To Seder" is an example:

    This is the mail system at host mail.

    I'm sorry to have to inform you that your message could not
    be delivered to one or more recipients. It's attached below.

    For further assistance, please send mail to postmaster.

    If you do so, please include this problem report. You can
    delete your own text from the attached returned message.

    The mail system

    <>: host[] said: 550 5.1.1
    <> Account not available (in reply to RCPT TO command)

    What is causing this?

  2. #2
    gvillari is offline Trained Alumni
    Join Date
    Apr 2010
    Rep Power



    Most probably backscatter! Take a look of this howto:

    Postfix Backscatter Howto


  3. #3
    phoenix is online now Zimbra Consultant & Moderator
    Join Date
    Sep 2005
    Vannes, France
    Rep Power


    Quote Originally Posted by matthewi View Post
    What is causing this?
    In addition to the suggestion in the above post you should search the forums and wiki for further details on how to deal with Backscatter and additional information on improving the anti-spam system in Zimbra.


    Acompli: A new adventure for Co-Founder KevinH.

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Similar Threads

  1. Replies: 24
    Last Post: 07-13-2011, 08:47 AM
  2. Replies: 7
    Last Post: 02-03-2011, 07:01 AM
  3. Help mail server broadcast spam
    By sh1n_b3 in forum Administrators
    Replies: 0
    Last Post: 01-19-2011, 07:44 PM
  4. fresh install down may be due to tomcat
    By gon in forum Installation
    Replies: 10
    Last Post: 07-25-2007, 08:09 AM
  5. Mail not getting to mail boxes
    By ehults in forum Installation
    Replies: 5
    Last Post: 10-31-2005, 09:24 AM

Tags for this Thread

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts