Mails are coming from unknown source.

Solution Unverified - Updated -

Issue

  • Following messages are coming from a server:
Date: Mon, xx Oct 20xx 22:01:21 -0600
From: Nobody <nobody@domain.com>
Message-ID: <201510401.t9R408203@domain.com>
To: <user1@domain.com>
Subject: Xvnc on xx.xx.xx.xx ..... --> 10.xx.xx.xx

Environment

  • Red Hat Enterprise Linux 5
  • Sendmail

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