Re: exim HELO=fully qualified host name?

From: Vincent Lefevre (vincent_at_vinc17.org)
Date: 02/29/04

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    Date: Sun, 29 Feb 2004 22:16:23 +0100
To: Debian-User <debian-user@lists.debian.org>

    On 2004-02-23 22:24:28 -0500, Derrick 'dman' Hudson wrote:
    > That depends on who's mail server you connect to. Some admins require
    > the HELO parameter to be resolvable, and some even require it to
    > resolve to the IP of the machine making the connection.

    They should fix their configuration, then.

    RFC 2821:

       An SMTP server MAY verify that the domain name parameter in the EHLO
       command actually corresponds to the IP address of the client.
       However, the server MUST NOT refuse to accept a message for this
       reason if the verification fails: the information about verification
       failure is for logging and tracing only. 

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