Len,
Right - I'm running SMTP, WebMessaging, & Logger services. The
other IMail services are not loaded (since I want to focus my
horsepower on SSL-based web messaging). By forcing SSL, I preclude
unsecured web messaging connections -- yielding EXACTLY what I was
looking for (Thanks, Ipswitch!). 100% encrypted email over the
Internet (critical, given legal & ethical mandates to protect
patient confidentiality).
Haven't researched MS KB. I have the luxury of watching the impact
on load as users are added. If the Dell Optiplex PIII 550MHz 384MB
box with U2W 36GB SCSI drives gets bogged down, I'll migrate it to a
multiprocessor box or add peer servers.
With NT4, throwing multiple processors at a job did little to
improve things (you're better off throwing a faster single processor
at it). But MS has gotten a lot of things (more) right about
Win2000, including MUCH better utilization of multiple processors.
The load is not easy to anticipate, because I won't be dealing with
5,000 typical email users. These will be clinicians & patients
communicating with each other regarding delivery of health services
and the transmission of medical records. All of them have another
email account (unsecure) which is their primary account for routine
email. So I'm only needing to handle a subset of the email needs
for these folks. That's why I'm playing this one by ear... I think
simultaneous hits won't approach 10%.
I'll find out over the next few months whether I'm right <grin>.
Gordon
-----
Len Conrad wrote:
>
> >I'm running IMail 6.02 on Win2000 Server. I can't contribute much
> >to your query, because it's only been in production mode for two
> >weeks as a secure departmental mail server (100 users thus far,
> >adding 4,000 over the next few months, then about 5,000 added per
> >year). Since I want SSL, I'm not running POP3 or IMAP4, and I'm
> >"forcing" SSL connections.
>
> how do you do that, please? by only allowing Web Msging?
>
> >But no problems thus far. I'm going to be interested to see what
> >kind of load is created by 5,000 SSL web messaging users (given that
> >I'm permitting no other access).
>
> How many simultaneous SSL sessions can MS tcp/ip support? Let's say 10% of
> your users connect simultaneously, that 500 encrypted sessions. Sounds
> like lot. Have you researched the MS kb and website for how/if to that many?
>
> Len
Please visit http://www.ipswitch.com/support/mailing-lists.html
to be removed from this list.
