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Webmail works but SMTP not

Discussion in 'E-mail Discussions' started by InteractM, Aug 30, 2016.

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  1. InteractM

    InteractM Well-Known Member

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    I have set an email server for a domain example.com as a local server. At the WHM MX Entry Editor I have

    MX zone example.org.db
    mail.example.com 0
    mail.example.com 10

    At the registrar DNS records for a domain example.com are

    CName:
    mail @ 1/2 Hour

    MX:
    10 @ mail.example.com 1/2 Hour
    0 @ mail.example.com 1/2 Hour


    revDNS (PTR) is set for mail.example.com and pint to the same IP as @

    MXToolbox recognizes MX record properly but when I will do SMTP test it fails whit errors below

    - SMTP Valid Hostname: Reverse DNS is not a valid Hostnam
    - SMTP Banner Check: Reverse DNS does not match SMTP Banner

    I have checked what response is SMTP server giving and it is not mail.example.com but rather a domain name of the server (WHM) itself.

    Any clue what can be set wrong?

    Thanks
     
  2. cPanelMichael

    cPanelMichael Forums Analyst
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    Hello,

    The following threads offer some solutions to this problem:

    Reverse DNS does not match SMTP Banner
    Warning - Reverse DNS does not match SMTP Banner

    You may also find this document helpful:

    https://documentation.cpanel.net/display/CKB/How+to+Configure+Exim's+Outgoing+IP+Address

    Thank you.
     
  3. InteractM

    InteractM Well-Known Member

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    Exim Configuration Manager >> Basic Editor has never ending spinning wheel :\
     
  4. InteractM

    InteractM Well-Known Member

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    I have go around that Spinning Wheel of Death and had set Send mail from account's dedicated IP address to ON but still I'm getting errors above. EHLO/HELO still is coming as the server (WHM) domain rather than account domain
     
  5. InteractM

    InteractM Well-Known Member

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    It looks like enabling Introduce a delay into the SMTP transaction for unknown hosts and messages detected as spam creates all those issues with SMTP

    Any thoughts?
     
  6. cPanelMichael

    cPanelMichael Forums Analyst
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    This option configures the SMTP receiver to wait a few additional seconds for a connection when it detects spam messages. The third-party utility is not waiting past the delay. You can add the IP address used by that third-party utility to the Trusted SMTP IP Addresses section of WHM's Exim Configuration Manager interface (Home >> Service Configuration >> Exim Configuration Manager).

    Thank you.
     
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