Great Circle Associates Firewalls
(February 1995)
 

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Subject: Re: Windows NT (fwd)
From: Matthew J Brown <mjb @ sophos . com>
Date: Sat, 25 Feb 1995 12:35:33 +0100 (GMT)
To: firewalls @ greatcircle . com

Darren Reed <avalon @
 coombs .
 anu .
 edu .
 au> writes:
> Do you wonder what the NT `sendmail' does ?  How many of security problems
> have they delt with that come from implementing the RFC ?  Or does it just
> simply not give you as much flexibility as sendmail ?  (This assumes they
> aren't using Unix's sendmail as a base).

The OS/2 sendmail does use UNIX sendmail as a base (a quite old version,
at that).  I personally have big doubts about its security; unfortunately
I have to run it, since the Lotus Notes<->SMTP gateway I have to run bolts
itself onto OS/2 sendmail (it is a sendmail local delivery agent). [It's
also flaky as hell, but that's another story ...]

Short of writing my own smtp-notes gateway, I don't see I have much choice
in the matter.  I do shield it from the Internet to some degree; its network
is not routed to, and mail is delivered first to a UNIX machine (this is
as much to cache received mail when the OS/2 mess crashes again, as for
security).  The OS/2 notes gateway machine talks to the company's main
Notes server via a serial line using a proprietory Notes protocol, so the
OS/2 machine isn't on the same network.

-Matt


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