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Thread: Mail server host name in greeting

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  1. #1
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    Question Mail server host name in greeting

    according to dnsreports I am having this problem:

    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.


    domain.com claims to be host mail.domain.com
    How can I go about fixing this in zimbra.

  2. #2
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    Default

    Go into the admin ui, and there is an option to use ehlo for the domain. I can't remember if it's in the domain only, or global setting. . or maybe it's in the MTA tab

    Anyway, it's there. You'll need to restart tomcat.

  3. #3
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    Quote Originally Posted by jholder View Post
    Go into the admin ui, and there is an option to use ehlo for the domain. I can't remember if it's in the domain only, or global setting. . or maybe it's in the MTA tab

    Anyway, it's there. You'll need to restart tomcat.
    Hmmm, I cant seem to find it anywhere in the admin ui.

  4. #4
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    Default Helo

    Is there an option in a config file where I can change the HELO from mail.domain.com to domain.com.

  5. #5
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    Unhappy

    I'm have the same issue as this also, and I cant find anywhere you change the ehlo or helo in the AI.

    Please can someone help use out here.

  6. #6
    phoenix is offline Zimbra Consultant & Moderator
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    Surely the problem here isn't what your greeting is but whether you have a correct A record and/or reverse DNS that has your domain name in it. Postfix should identify itself as the FQDN of your zimbra server such as '220 xxx.domain.com ESMTP Postfix' where xxx is the machine name and domain.com is your domain name. That shouldn't cause you any problems, anything other than that might be considered 'suspicious' behaviour and could get you identified as sending spam.
    Regards


    Bill


    Acompli: A new adventure for Co-Founder KevinH.

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