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550 Sender verify failed (new server)

Discussion in 'General Discussion' started by GoWilkes, Mar 4, 2014.

  1. GoWilkes

    GoWilkes Well-Known Member

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    I'm setting up a new server to replace an existing one. The new server doesn't currently have any accounts on it; once everything is configured, I'll be copying all of the accounts on the old server to this one.

    In configuration, though, I've set up Edit System Mail Preferences > root's mail to point to an email address that is currently on the old server (but, of course, will soon be on the new server).

    Since then, I've gotten a ton of emails (mainly from CSF) that have bounced with a 550 Sender verify failed error:

    Code:
    user@example.com
        (generated from root@new.server.com)
        SMTP error from remote mail server after RCPT TO:<user@example.com>:
        host example.com [123.45.67.89]: 550-Verification failed for <root@new.server.com>
        550-The mail server could not deliver mail to root@new.server.com.  The account or domain may not exist, they may be blacklisted, or missing the proper dns entries.
        550 Sender verify failed
    
    In the above, 123.45.67.89 refers to the IP of the old server, not the new one. But new.server.com, of course, refers to the name of the new server, not the old one.

    I tried adding the new server's IP to the SPF record on the old server, but that didn't seem to solve the problem (unless it needs to propogate? I only changed it about 30 minutes ago):

    "v=spf1 +a +mx +123.45.67.89 +ip4:987.65.43.21 ?all"

    What else do I need to change in order to make this be allowed?
     
  2. cPanelMichael

    cPanelMichael Forums Analyst
    Staff Member

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    Hello :)

    Try creating an actual email account on the source server and configuring the root contact address to that. Then, you can setup that email address to forward to whichever contact address you prefer.

    Thank you.
     
  3. petru

    petru Active Member

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    I know this is an old thread, But Michael.
    Could you kindly explain why it is that this issue occurs?

    I have the same issue and I'd like to know how I can configure my server2 WHM Server to accept root emails from my server1 whm server.

    Right now I know the emails are sending from server1 to server2 because they are shown in the mail reports on server2 but server2 is rejecting the mail for some reason, I'd like to know why.


    Event: rejected rejected
    Sender User: -remote-
    Sender Domain:
    Sender: root@server1.hostname.com
    Sent Time: Feb 16, 2015 3:57:15 PM
    Sender Host: server1.hostname.com
    Sender IP: 12.345.67.891
    Authentication: unauthorized
    Spam Score: 0
    Recipient: email@accountonserver2.com
    Delivered To:
    deliveryuser: account user
    deliverydomain: accountonserver2.com
    Router: reject
    Transport: **rejected**
    Out Time: Feb 16, 2015 3:57:15 PM
    ID: 1YNDkH-0009sZ-ZZ
    Delivery Host: server1.hostname.com
    Delivery IP: 23.456.78.912
    Size: 0 bytes
    Result: Sender verify failed


    Thanks.
     
  4. cPanelMichael

    cPanelMichael Forums Analyst
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    Hello :)

    Use the "exigrep" command to search for that message in your Exim logs. EX:

    Code:
    exigrep user@domain /var/log/exim_mainlog
    This should provide more information about the rejection.

    Thank you.
     
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