Anthony,

Many of the problems come not from email but from other exchange 
functionality like shared calendaring, etc. I can say tentatively that 
the hardware will work but there are a lot of gotchas. Although they all 
cost less than 1690 exchange seats. Stay far away from sendmail, wmail 
is good but postfix does the virtual user features a little better with 
imap (to cyrus). Do you want to use an ldap authentication backed on the 
linux side or something else?

I have a lot of experience in these circumstances, I can talk to you 
locally if you like. I am in chandler.

Sincerely,
David Uhlman
CTO 50km Inc.


tickticker wrote:
> Hello everyone,
> 
> Been busy with a few contracts, but I'd like to ask the list for some 
> suggestions/recommendations and leave a few comments of my own.
> 
> I have a client with over 1700 users on Exchange2000 and when I audited them, 
> they only had 10 licenses... oops.  So I have them sold on going to the linux 
> platform and using qmail or sendmail.  I think qmail would work fine, but 
> they will be expanding up to 5000 users over the next couple years.  
> 
> Question: will this work on a single box reliably?  It's a dual 1.7 with a 
> raid5 configuration and 1.2 gigs RAM.  Simple email is all it will do.
> 
> Question: Is there any conversion I can do or using tab delimited text files 
> from active directory or is it a start from scratch proposition?  User names 
> or accounts or even the mail files?
> 
> Comment: If there aren't then shouldn't there be?  I'm thinking of the admin 
> with 1,000+ users saying "NO WAY am i going to do this conversion, It would 
> take forever!"
> 
> Question: Anyone have experience doing this?  
> 
> Any help would be appreciated, expecially going forward.  While I will support 
> a client's Microsoft base, I always recommend a Linux solution but this is 
> the first Medium sized taker I've encountered.  Maybe someone knows of a 
> knowledge base that tackles small, medium, large and enterprise class 
> conversions ( Sales tactics, implementation, and client education )
> 
> Okay so my questions and comments are all mixed up, but I hope you get the 
> gist of what I'm trying to find out here.
> 
> Again, ANY help is appreciated.  I am doing research on my own but the voice 
> of experience is, to me, a better resource, expecially when geographically 
> close.
> 
> Thanks in advance,
> 
> anthony
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