Last Modified 2012-02-21 by Gunnar Wrobel

Horde/IMP Deployments

Company/Organisation Users Servers Contact Details
SAPO Mail (Portuguese ISP) 1.65M Webmail users 11 Webmail+imap proxy servers / 2 MySQL servers / 6 Dovecot IMAP servers (dual 3.0GHz Xeon P4, 4GB RAM) Nuno Loureiro Running Horde/IMP/Turba/Kronolith/Ingo - Splitted from CVS HEAD on Oct 2003. Running Zend Platform. Screenshot
SAPO Mail BETA (Portuguese ISP) 60,000 Webmail users and growing 2 Webmail+imap proxy servers / 2 MySQL servers / 6 Dovecot IMAP servers (dual 3.0GHz Xeon P4, 4GB RAM) NOTE: All the backend servers (sql, imap, ..) are the same for Webmail and Webmail Beta (see previous entry) Nuno Loureiro Running Horde/DIMP/Turba/Kronolith/Ingo - CVS HEAD! Running Zend Platform. Screenshot
versatel.nl 250,000 webmail 5 x dual Xeon 3,2 Ghz 4GB running Apache, imapproxy and perdition on Debian Sarge Richard Zuidhof Horde 3.0.x / IMP 4.1.x, ionCube
University of Michigan 113,000 IMP / Horde: 5 x Dell Poweredge 1750 (dual 3.0GHz Xeon P4, 4GB RAM), 9 x SuperMicro 5013S-8 (dual 3.6Ghz Xeon P4, 4GB RAM); MySQL: 2 x Western Scientific (dual 3.0Ghz Xeon P4, 4GB RAM, RAID 1+0) Liam Hoekenga eAccelerator , Cyrus IMAP, UP-IMAPProxy, memcache based sessions
Columbia University 85,000 IMP / Horde: 9 x SunFire v240; Oracle: 1 x SunFire T2000; Cyrus Frontends: 12 x HP DL360; Cyrus Backends: 18 x HP DL360 pairs Matt Selsky eAccelerator , Cyrus IMAP, UP-IMAPProxy
University of Frankfurt 40,000 Mail Support Team Established their own Horde user guide wiki
University of Giessen 30,000 Mail Support Team Offer Roundcube and Squirrelmail as well
Ghent University 30,000 Debian Etch on some Sun machine
University of Wuppertal 15,000 Horde 4. Deals with about 10.000 logins per day.
Graz University of Technology 13,000 Horde 4, Sun Fire X4100 2x2.4 Ghz Dual-Core AMD Opteron, 4Gb Ram, 2x Sun Fire V20z 2x2200 Mhz AMD Opteron 4Gb Ram, 2 redundant Cisco loadbalancers CSS11503 with cyrpto-cards for SSL accelleration, 2x Sun X4600 4x3.0 Ghz Dual-Core AMD Opteron, 16Gb Ram for mySQL backends in Master-Master replication mode webmail SSL is handled by the crypto card on the loadbalancer, PHP is accellerated by xcache, up-imapproxy
Harvard University, Faculty of Arts and Sciences thousands 4 Compaq Tru64 Details
University of Texas at Austin, Department of Physics 1,000 Dell Poweredge 2650 server, dual Xeon 3.0 Ghz, 1 GB memory, 2 S/W Raid1 volumes Eric Rostetter
National Portuguese Government Agency 1,000 8 Mail Servers (Exchange) and 1 Webmail Server (Apache/SSL)
Linux Information Systems AG hundreds Matthias Rolke We offer a customized horde groupware setup as a frontend for the Kolab Groupware that includes dimp, turba, kronolith, mnemo, nag and ingo. The complete backend consists of Kolab, OpenLDAP, postfix, Apache2 and sieve. Screenshot
Case Western Reserve University, EECS Department hundreds 2 Sun X1 and 1 Sun V280R Simon Kuhn
NYU School of Medicine
Universidad Tecnica Federico Santa Maria
University of Colorado at Boulder Details
Yale University