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550 Access denied - Invalid HELO name (See RFC5321 4.1.1.1)

Discussion in 'E-mail Discussions' started by goncalocabral, Mar 18, 2014.

  1. goncalocabral

    goncalocabral Registered

    Joined:
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    Root Administrator
    Hi,

    I'm not a regular forum user but this time I had no other option. I'm facing this problem since I migrate from shared hosting to a VPS with WHM / Cpanel and sometimes, just in SOME HOSTS, when i send an email, i get this error from from my own VPS, by "Mail delivery System"

    PHP:
      marketing@pinga.pt
        SMTP error from remote mail server after MAIL FROM
    :<mail@goncalocabral.comSIZE=14077:
        
    host vps46790.ovh.net [37.187.54.234]: 550 Access denied Invalid HELO name (See RFC2821 4.1.1.1)

    ------ 
    This is a copy of the messageincluding all the headers. ------

    Return-
    path: <mail@goncalocabral.com>
    Receivedfrom av3-84-90-82-114.netvisao.pt ([84.90.82.114]:50023 helo=AsusX52J)
        
    by vps46048 with esmtpa (Exim 4.82)
        (
    envelope-from <mail@goncalocabral.com>)
        
    id 1WPu2I-0003Cj-7y
        
    for marketing@pinga.ptTue18 Mar 2014 13:26:30 +0000
    From
    : =?iso-8859-1?Q?Gon=E7alo_Cabral?= <mail@goncalocabral.com>
    To: <marketing@pinga.pt>
    Subjectteste
    Date
    Tue18 Mar 2014 13:27:07 -0000
    Message
    -ID: <045b01cf42ad$c29ae420$47d0ac60$@goncalocabral.com>
    MIME-Version1.0
    Content
    -Typemultipart/related;
        
    boundary="----=_NextPart_000_045C_01CF42AD.C29BCE80"
    X-MailerMicrosoft Outlook 14.0
    Content
    -Languagept
    Thread
    -IndexAc9CrcIZpAeApXLaR8CwvETVzMByzA==
    I've been fighting against this and i already turn off "Require RFC-compliant HELO" and even "Require HELO before MAIL" but nothing seems to work. I disabled DKIM, SPF, enabled again, and nothing works. How can I solve this? My clients are angry (I understand that) and there's nothing more I can do by now.

    The problem is not only on Outlook (yes, i tried "my server requires authentication"). Even when I try to send a email to those specific webmails by Cpanel software I receive that error.

    Can you help me?
     
  2. cPanelPeter

    cPanelPeter Technical Analyst III
    Staff Member

    Joined:
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    Twitter:
    Hello,

    I recommend you open a support ticket using the link in my signature. One of our analysts will investigate this for you.
     
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