----- Original Message ----- 
From: "Michael" <
michael.ross@atice.org>
To: 
<
users@lists.roundcube.net>
Sent: 
Monday, February 19, 2007 11:44 PM
Subject: Re: Question about RoundCubeMail 
setup
>
> Hi Anthony,
>
>> I'm setting up a 
very specialized email service that will ultimately need
>> to support 
a few hundred thousand users or more.  From looking at the 
>> 
code, I
>> am left wondering if I need to install a separate IMAP 
server or does
>> RoundCubeMail handle it all? If I do need to install 
an IMAP server, can
>> anyone suggest one in particular? Right now, I'm 
seriously looking at 
>> Cyrus.
>
> Roundcube is a browser 
based IMAP client. To use it you need a seperate 
> IMAP 
server.
>
> Given the system size you want to deploy, I'm not 
certain what IMAP server 
> to suggest. Hosting a few hundred thousand 
users will present a fair few 
> issues to be resolved (bandwidth, server 
specs etc..).
Hi Michael,
Thanks for your quick response. I was 
suspecting that I might need a backend 
IMAP server to run with RCM but 
wanted to make sure it was an absolute 
requirement. I suppose I should have 
noticed the word "client" in the 
description and that would have answered my 
question. lol
It seems that the server specs and bandwidth aren't going 
to be that much of 
a problem as we're going to be using a large datacenter 
and have plenty of 
servers setup in clusters. Finding a good, reliable IMAP 
server is going to 
be a problem it seems. I'll keep looking and, if anyone 
happens to have any 
recommendations, please feel free to forward them my 
way.
Thanks,
Anthony