[mailhist-discuss] other network mail systems

Thomas Haigh thaigh at computer.org
Fri Apr 6 14:56:10 PDT 2012

Those sound interesting to me. Systems of this kind are much less well
documented than the ARPANET/Internet technologies. So starting the process
of getting their history preserved (perhaps in an archive such as the
Charles Babbage Institute if manuals or other documents can be located)
would be an important contribution of the project.


-----Original Message-----
From: mailhist-discuss-bounces at emailhistory.org
[mailto:mailhist-discuss-bounces at emailhistory.org] On Behalf Of Tom Van
Sent: Thursday, April 05, 2012 3:39 PM
To: mailhist-discuss at emailhistory.org
Subject: [mailhist-discuss] other network mail systems

I know of two.. the IBM "internal network" and the Tandem internal mail

My knowledge of the IBM network comes from Usenet posts on the subject by
Lynn Wheeler.
The VNET network had its origin as a file transfer protocol that ran on
CP/CMS in the early 70s.
The same software was later used for BITNET.  See

The Tandem mail system used Tandem's Exchange networking, which provided a
single system image file system spanning multiple computers.
It was written about 1979; by the time I joined Tandem in 1981, there were
more than a thousand users on dozens of systems.
A gateway between the Tandem mail system and SMTP mail on the Internet was
don in the late 80s.
I can provide more information on the Tandem mail system if this is
interesting to anyone.

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