By installing LSMTP, or another email software product such as Sendmail, you will have
the ability on the LISTSERV server to handle mail delivery.  However, that doesn't mean
that mail will still not be relayed to the Exchange servers in your company, especially if
there are subscribers to your lists that are within your organization.

To illustrate, when I worked for the National Institutes of Health we had LISTSERV send
mail via our sendmail software.  However, if the mail was for subscribers within NIH it
was relayed to the exchange servers.

I believe having a mail delivery system on the LISTSERV server is a great idea;
however, your company's Exchange servers still run the risk of crashing if a large list
mailing is relayed to them.

I hope this helps a little.

Richard Keller


> Hi all-
>
> We have been having a terrible time with relaying outgoing mail via
> our Exchange server. At digest-time, due to the volume of our lists,
> we often crash our mail server completely.
>
> About a year ago, we were going to use the L-SMTP program, and I think
> our IT group even bought it, but then never implemented it.
>
> So we have had outgoing listmail relaying via our Exchange server for
> a long time. But this is bad, not only because of the crashing, but
> also because we cannot keep diagnostic logging on as it fills too
> quickly because of all the listmail. So, when a user has a genuine
> mail problem, we really cannot see what is going on.
>
> We want to make the smtp on the box that actually has Listserv on it
> handle the outgoing mail. Now, I am in NO WAY a mail admin - I can't
> read a header to save my life. But I am the Listserv admin, and I am
> trying to work together with IT to solve this problem.
>
> IT suggested I ask "The List" (you folks) for input, and they put
> together a little description of what is going on now. They are
> thinking that turning off "forwarding" might make Listserv
> automatically use the local smtp, but we don't want to inadvertently
> bring down all our lists if we are wrong.  :-)
>
> Any help would be most appreciated!
>
> Shannon  :-)
>
>
>
> <description>
> Let me give you an idea of our setup so you can describe it to them.
>
> The listserv machine receives messages directly from the internet
> (messages DO NOT come in through our mail server).
>
> Once the listserv does its listserv thingy and wants to send out a
> message it is set up to "forward" to our mail server.
>
> From there, once our mail server receives the messages, it knows what
> to do and starts sending out the messages.
>
> Now, what we WANT to have happen after we make the change is the
> listserv no longer forwards messages to our mail server to be sent
> out.
>
> Just like the listserv receives messages directly, we want it to send
> out messages directly.
>
> Hopefully it is just as easy as turning off "forwarding" but I cannot
> tell from the documentation. It does not really go into depth about
> how exactly the process works from when the listserv receives messages
> to when it sends them out. </description>
>
>
> ~~~~~~~~~~~~~~~~~~~~~~~~~~~
> Shannon Ahern
> DevelopMentor WebMistress
> 310-543-1716
> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> It is our light, not our darkness, that most frightens us.  -Nelson
> Mandela