>Would running Web mail on a separate machine make that much of a speed
>difference or is the statement more from a personal
>preference/stability/whatever point of view?

The first question is how much webmail consumes, and why.  For every 
webmail user, Imail has to open a iwebmail session, which takes x mb of 
memory, it lasts ususally many minutes, somes 10�s of minutes, vs a few 
seconds for popo and smtp sessions.  multiply by 10's or 100's of 
simultaneously connected webmail users.

webmail also encourages users to keep their mail on the server, meaning 
bigger to huge-ish mailboxes (ie, .mbx files), takes longer to scan, 
repeatedly, to build the list of msgs in iwebmail.  much more pressure on 
the mailbox disk.  imap is worse that pop3, but imap is better for webmail 
server than pop3.


>   I do see that 7.x is MUCH
>slower on the Web than 6.x was, but I'm not sure if that is a function of
>the Web mail, the mail backup, both or something else.  If putting the Web
>mail service on another box would speed up the mail system, that would be
>great.

I have asked for this "satellite webmail server(s)" working into one 
mailbox server, but Imail 7 is still only strictly a one-box solution.

Easing the pressure on an IMail box is achieved by offloading 
receiving/sending/anti-abuse plumbing to IMGate (which you have already 
done), and not loading up a busy Imail server with AV scanning (declude 
works best when the Imail server has a lot of power to burn).

You could try a free webmail server like NOCC on FreeBSD or Linux working 
into Imail's mailbox server. The pb is that if you're using HKSI templates, 
these lock you in / spoil your users with Imail webmail.  NOCC-type stuff 
is pretty nice, but it's not HKSI.

Len


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http://IMGate.MEIway.com  : Build free, hi-perf, anti-abuse mail gateways


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