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Thread: About "Sender:mailer-daemon"

  1. #1
    Join Date
    Apr 2007
    Posts
    6
    Rep Power
    8

    Default About "Sender:mailer-daemon"

    I never sent mail to eq-4p@xr_haig.roup.com .But in my queue,i get is message.
    Sender:mailer-daemon
    From host: undefined
    From domain: undefined
    From IP: undefined
    Recipients: eq-4p@xr_haig.roup.com
    To domain: xr_haig.roup.com
    Content filter: undefined
    Size: 9312
    Reason:host or domain name not found.name service error for name=xr_haig.roup.com type=mx:host not found,try again
    Please tell me why and how to resolv this problem.
    Thanks

  2. #2
    Join Date
    Nov 2006
    Location
    UK
    Posts
    8,017
    Rep Power
    25

    Default

    Check in /var/log/zimbra.log for that email address. Ensure that you are not allowing relaying aswell. You can also use
    Code:
    su - zimbra
    zmmsgtrace -r eq-4p@xr_haig.roup.com
    to trace it through Zimbra. Somebody may just have spoofed your domain aswell, so you are effectively getting the backscatter from it.

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