Hi all,

At the San Pablo CEU University (Spain), we move to roundcube 0.3 in september 09, before we
have and old squirrelmail.

Number of users: 15.000+

The server architecture is based on a 2 frontend active-pasive apache2 with MySQL 5 replication
master-slave and 2 backend, active-pasive with postfix (2.3.3) and dovecot (1.2.6) authenticated
to a Microsoft AD.

Our students are very happy with the change and its stability. Personally i am really enthusiastic
with the plugin architecture and hope to see in time, some calendar and task plugins.

The plugins the we use are contextmenu and serverinfo, and testing more in the test enviroment.

Thanks to all people making Roundcube!

2009/11/6 Ziba Scott <ziba@umich.edu>
Hello,

We've been offering Roundcube to everyone at the University of Michigan
for a bit over a year.

Number of users (max): 70,013
       This is the number of preference sets in the database.  We have
more IMAP accounts, but they have not yet chosen to visit our Roundcube
install.

Average of concurrent users: 500 to 2000
        The number is highly variable based on time of day and our
academic calendar.
        A snapshot from this morning shows:
           Active in the last hour: 2715
           Active in the last 5 minutes: 1879
           Active in the last minute: 1096
           (we've got a plugin which gives stats like these that we're
still preparing to share)

Number of hosts serving Roundcube: 19
     We are using round-robin DNS.  These machines are separate from
our IMAP servers and serve Horde/IMP also.

Database backend software: MySQL 5

IMAP backend software:  Cyrus and ImapProxy
     We use a proxy with unlimited credentials to allow authentication
to be performed by CoSign (http://weblogin.org/)

Other webmail software which is offered as alternative:
      We continue to run Horde/IMP mail as we have for many years.  Our
Horde/IMP install has more regular users than our Roundcube.  We
differentiate our offerings by saying Roundcube is our modern,
easy-to-use webmail and Horde/IMP is our feature-rich webmail.  There
are no plans to stop offering IMP.

Some interesting, un-shared modifications have been:
   * All folder searching and a new search interface
   * A checkbox column
   * Horde Addressbook read/write
   * Non-scrolling column headers
   * A new skin (still working to make it 3.1 compatible)
   * Forwarding full headers
   * Forced client refresh on upgrade
   * CoSign authentication

We're working on sharing these changes and more.  We've had between 2
and 5 developers working on RC part time for the last year.

We would be happy to share more about our experiences with Roundcube if
it would be helpful to anyone.  If you couldn't tell from this message,
I could go on for hours :)

Thanks to everyone making Roundcube for all your hard work!

Regards,
Ziba

Thomas Bruederli wrote:
> Hi there
>
> I'd like to get some facts and figures about how and where you people use
> Roundcube and what number of users access their mails via Roundcube. We
> already have a list of hosters who offer
> http://trac.roundcube.net/wiki/RoundCube but this might not be complete and
> it lacks any numbers.
>
> We often get requests about this topic and I'd like to give some proven
> answers about the power of Roundcube when used in large-scale environments.
>
> So please post some details about how you use Roundcube including:
>
> - Number of users (max)
> - Average of concurrent users
> - Number of hosts serving Roundcube
> - Database backend software
> - IMAP backend software
> - Other webmail software which is offered as alternative
>
> Please also note if you would be willing to share your experience about the
> integration of Roundcube in your environment with people who ask us for help.
>
> Thanks a lot!
>
> Thomas
> _______________________________________________
> List info: http://lists.roundcube.net/dev/
>
>
>

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