Joe,

>  Instead of trying to write your own, etc. the answer is FreeBSD
>  running QMail.

...and some janky webmail for *nix? I have tried several, and they all
felt  designed  by  techies  for users who don't mind sloppy form post
handling,  cache expiry, and debug errors thrown right into the user's
browser.

People  go to Imail because their primary experience is with Win32 and
because  Ipswitch bills Imail as an integrated system. But yep, it's a
fact,  proven over and over, that Imail's single-server, single-vendor
integration  claim  falls  apart under several different load vectors.
This  is  not  documented  anywhere  but  on  the  lists,  and there's
definitely  been  dereliction  of  duty  on  their  end, much of which
they've admitted.

But  it's my opinion that those running carrier-class, for-profit (and
that  includes  WM as a loss leader) installations should never try to
scale up before they scale out. It amazes me sometimes that people try
to  run  an  ISP  off  one  server,  trying to wring that last cent of
functionality  out  of  Imail's very low cost. Even when I put in free
and/or open-source mail systems for new service providers, I *mandate*
that  they  start  out  with a midrange load balancer and a two-server
farm  and  build their apps to scale from day one. If they ask if they
can  run  webmail  on  the  same  boxes,  I'll turn it on, sure; since
they're  starting  out distributing users across two different webmail
hosts,  the  third and subsequent ones don't freak anybody out. If the
system  is  architected  so that they can keep adding new pizza boxes,
with no diminishing returns, everybody's stays happy. Whenever someone
is  told they need a single box, ever--and I do sympathize with people
who  have  inherited  systems,  and  bosses,  that  already think that
way--that's one promise they don't soon forget.

With  all  that  said,  I do wonder with you why Terrence is trying to
keep  Imail  under  the  circumstances,  given  that  he clearly has a
multiplatform, even Unix-leaning skill set.

Sandy




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