We use Steltor, Cyrus IMAP, Keberos V & OpenLdap works great.. Not as tightly integrated as exchange on the user side but we're a UNIX shop so not a problem plus our solution lets users select there preferred mail client -- something many of them like to do. We're also able to support Macintosh clients natively for Calendar & Email. You can't do the outlook workflow stuff (custom apps ala lotus notes). We're also behind on Cyrus installs and our users are looking forward to having Server Side (Sieve) rules. We support between 2000 & 3000 email accounts and about 1300-1500 Steltor accounts. We're an email intense institution. Calendar use is split about half of our users are hardcore 8hours day / 5days a week users other half casual use. Some specs
Cyrus IMAP (current 1.5.19 going to 2.1.3) Authenticate via Kerberos V mail on 4 PII400 machines front-ended by a custom load-balancing IMAP proxy -- see Cyrus Murder page for more info and a link to my solution. Steltor (2 nodes in network config using same LDAP) 1100 users on E3000 w/ 512Mb 2x250Mhz CPUs 400 users on Netra w/ 256Mb 1x170Mhz CPU 2nd location OpenLDAP Authenticate via Kerberos V master PIII 1Ghz 512Mb RAM slaves 2 x PIII 1ghz 512Mb Primary Public Address book servers -- double as IMAP proxy frontend - perform 5-10 connections per second for IMAP and 3-5 connections per second for LDAP during business hours PIII 1ghz 512Mb RAM -- 2nd location PII 350 128Mb -- External LDAP server Web Interfaces IMP & Steltor Web Client on PII 350Mhz w/ 256Mb Anthony Brock wrote: > > Does anyone use Cyrus IMAP with the Steltor Calendar server? Specifically, > do you use the Steltor Outlook connector? > > We're evaluating the possibility of using Cyrus IMAP with Steltor instead > of using an Exchange Server. At this time, there is heavy pressure to > implement an Exchange solution (which I would prefer to avoid). Experiences > would be greatly appreciated (especially with regard to > functionality/testimonials/etc). > > Tony > > ****************************************************************************** > * Anthony Brock [EMAIL PROTECTED] * > * Director of Network Services George Fox University * > ******************************************************************************