Open webmail header format

From: "Username" <username@sendinghost.com>
To: "Username" <username@receivinghost.com>
Subject: Header test
Date: Thu, 2 Aug 2007 20:54:36 +0400
Message-Id: <20070802165414.M43479@sendinghost.com>
X-Mailer: Open WebMail 2.50 20050106
X-OriginatingIP: 255.255.255.255 (username@sendinghost.com)
MIME-Version: 1.0
Content-Type: text/plain; charset=koi8-r

Message-ID format:

openwebmail/openwebmail-tool.pl
   # fake a messageid for this message
   my $fakedid = ow::datetime::gmtime2dateserial().'.M'.int(rand()*100000);
   $fakedid="<$fakedid".'@'."${$config{'domainnames'}}[0]>";