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Sporadic "Unrouteable address" error message

Discussion in 'E-mail Discussions' started by albatroz, Nov 11, 2015.

  1. albatroz

    albatroz Well-Known Member

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    Several of my customers are reporting sporadic problems receiving email messages, so after running grep over the /var/log/exim_mainlog file, I found several lines like these:

    2015-10-21 17:10:19 1Zp1Cc-0002RY-Hq ** aaaaa@xxxx.pe: Unrouteable address
    2015-10-21 17:10:19 1Zp1Cc-0002RY-Hq ** aaaaa@xxxx.pe: Unrouteable address
    2015-10-21 17:10:19 1Zp1Cc-0002RY-Hq ** aaaaa@xxxx.pe: Unrouteable address
    2015-10-21 17:10:19 1Zp1aN-0006DO-50 ** aaaaa@xxxx.pe: Unrouteable address


    The problem is that some of those email addresses really do exist.
    So my question is, what is causing this issue?
     
  2. dalem

    dalem Well-Known Member
    PartnerNOC

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    1. your DNS resolvers on the sending are not set up or working correctly
    2. The DNS on these domains are not set up or working correctly
     
  3. cPanelMichael

    cPanelMichael Forums Analyst
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    Hello :)

    Check to ensure you are using working resolvers in your /etc/resolv.conf file. Also, ensure the domain name is added to the /etc/localdomains file if it's email is handled by the local cPanel server.

    Thank you.
     
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