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Mail server host name in greeting

Discussion in 'E-mail Discussions' started by Zion Ahead, Sep 29, 2007.

  1. Zion Ahead

    Zion Ahead Well-Known Member

    Nov 10, 2006
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    dnsreport is showing this error:

    WARNING: One or more of your mailservers is claiming to be a host other than what it really is (the SMTP greeting should be a 3-digit code, followed by a space or a dash, then the host name). If your mailserver sends out E-mail using this domain in its EHLO or HELO, your E-mail might get blocked by anti-spam software. This is also a technical violation of RFC821 4.3 (and RFC2821 4.3.1). Note that the hostname given in the SMTP greeting should have an A record pointing back to the same server. Note that this one test may use a cached DNS record. claims to be host [but that host is at (may be cached), not]. <br />

    What should I do to correct this?
  2. jayh38

    jayh38 Well-Known Member

    Mar 3, 2006
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    Edit the dns record for the domain and modify the mx entry.

    instead of using

    use which should be the full host name of the server.

    So the entire entry should be like this: 14400 IN MX 0

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