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"REJECTED - Bad HELO - Host impersonating

Discussion in 'E-mail Discussions' started by Solokron, Mar 12, 2009.

  1. Solokron

    Solokron Well-Known Member

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    I just recently transferred accounts over to a new server. The server is setup in DNS, RDNS, etc. It is what it says it is in terms of ping etc and has been active for five days now.

    I have a client having his email rejected from some mail servers with

    "550 "REJECTED - Bad HELO - Host impersonating" though.

    Any ideas?
     
  2. Solokron

    Solokron Well-Known Member

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    Any help would be greatly appreciated.

    Thank you,
     
  3. cPanelDavidG

    cPanelDavidG Technical Product Specialist

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  4. neonix

    neonix Well-Known Member

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    Hi,

    check with your host if they have setup the reverse dns entry (PTR) for your main i.p. to match your hostname?
     
  5. rporto

    rporto Member

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    Same problem here

    Hi,

    I'm having exactly the same problem. I have an older server mydomain.com and I recently ordered am additional server mydomain.com.br.

    My clients in the new machine can't send e-mail from their accounts to accounts in the older server, ex.:

    user@userdomain.org.br to me@mydomain.com

    My older server replies:
    SMTP error from remote mail server after MAIL FROM:<user@userdomain.org.br> SIZE=1655:
    host mydomain.com [xxx.xxx.xxx.xxx]: 550 "REJECTED - Bad HELO - Host impersonating [main.mydomain.com.br]"

    Solokron, did you have your problem solved?

    Any answers will be highly appreciated.

    Cheers,
    Ricardo
     
  6. Solokron

    Solokron Well-Known Member

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    My issue was DNS/RDNS related.

     
  7. hermit

    hermit Active Member

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    No RDNS with cpanel

    I'm having a reverse problem as well. Is WHM/Cpanel supposed to be setting up reverses? I'm comparing now and not a single in-addr.arpa in the new setup named.conf that I can see compared to the old server.
     
    #7 hermit, Apr 4, 2009
    Last edited: Apr 4, 2009
  8. Solokron

    Solokron Well-Known Member

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    Typically your data center administers PTR records. If they have delegated RDNS to you check out the following thread:
    http://forums.cpanel.net/showthread.php?t=69349&highlight=PTR

    We administrate our RDNS and the instructions in the thread work wonderfully for us and is very quick.

     
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