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Random Remote Host Chosen If No Name Given on HELO or If a Bogus Hostname Is Specified (Doc ID 2432103.1)

Last updated on AUGUST 08, 2018

Applies to:

Oracle Communications Messaging Server - Version 8.0.2 and later
Information in this document applies to any platform.

Symptoms

A random remote hostname is chosen if no name is specified on 'HELO' or if a bogus name is specified, for example, when using mconnect.

Here are some examples:

$ mconnect host1.rno.domain.com
connecting to host host1.domain.com (xx.xxx.xxx.xxx), port 25
connection open
220 host1.domain.com -- Server ESMTP (Oracle Communications Messaging Server 8.0.2.3.20180614 64bit (built Jun 14 2018))
HELO
251 host1.domain.com system name not given in HELO command, relay3.domain.com [xx.xxx.xxx.xx].
MAIL FROM: userA@domain.com
250 2.5.0 Address Ok
RCPT TO: userA@domain.com
250 2.1.5 userA@domain.com Ok

Here is the corresponding 'Received:' header:

 

Cause

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