Date: Fri, 28 Feb 1997 11:45:06 -0800 From: "Michael L. VanLoon -- HeadCandy.com" <michaelv@MindBender.serv.net> To: Andy Cowan <andyc@waverider.net.uk> Cc: freebsd-isp@freebsd.org Subject: Re: Exchange Server getting email Message-ID: <199702281945.LAA17144@MindBender.serv.net> In-Reply-To: Your message of Fri, 28 Feb 97 12:22:40 %2B0000. <3.0.32.19970228122240.007dbc00@waverider.net.uk>
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Andy Cowan <andyc@waverider.net.uk> wrote:
>At 10:47 28/02/97 +0000, you wrote:
>>Jim Riffle wrote:
>>> I have a user using MS Exchange for which we store their mail. Somewhere
>>> in the Exchange configuration you can have it issue a command upon a
>>> successful connection. Have them do a
>>> "rsh your_box.com /usr/sbin/sendmail -qRtheir_domain.com"
>>So the MS Exchange server is an SMTP server ?
>Only in the sense that it can accept and send SMTP mail - meaning that it
>is basically an MS Mail server with an optional SMTP gateway bolted on.
>We're finding more and more people asking for SMTP feeds to Exchange Server
>now, whatever we advise them ;-)
Not quite.
The Exchange Internet Mail Connector does not have a byte of MS Mail
code in it. Exchange core has little or no MS Mail code in it. It is
a completely new-generation messaging platform. It is not an
incremental improvement of the MS Mail code base.
And, the Internet Mail Connector is not "bolted on" to Exchange. It
is a well-integrated gateway using the Exchange gateway interfaces.
Finally, yes, it is a fully RFC compliant SMTP server (or gateway, if
you like, in Exchange 4.0 -- in Exchange 5.0 it is fully integrated
into the Exchange core, except for things like replication and
routing). It has additional code to handle queuing, and periodic
dial-up, gracefully, among other things.
The problem with dial-up is not so much SMTP. Although SMTP has no
real explicit support for periodic connections, it also does not have
explicit limitations. The primary problem is that most SMTP software
was not written to give periodic connections very thorough support.
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