On Fri, 5 Aug 2005, daniel wrote: > So at the moment, my main issues are: > > - How do I replicate the user list from the master to the satellites? > - What MTA should I use on the satellites and how would I configure it? > > I don't even know if "cluster" is the right word since whenever I google for > it, i run into references to LVS and Beowulf clustering which is not what I > need.
Im sure you'll get answers for all the MTA's so maybe the best thing is just to describe what we do. I work for an ISP, and we have mail servers supporting several thousand users. For this setup we are using qmail + vpopmail + MySQL. We looked at LDAP too and concluded it was an ugly beast ;-) Our vpopmail account details all live in MySQL - separate read and write database servers help spread the load (we replicate between servers). vpopmail uses maildirs by default - this means we can NFS mount delivery folders across machines without worrying about file-locking, etc. This also means you can spread POP3/IMAP traffic across several machines if you want. We also have three servers dedicated to spam and virus filtering - those run daemonized spamd and clamav (we are using a local DNS zone to round-robin spamd connections so the load is again spread across all three filtering servers). We are also using squirrelmail and qmailadmin to provide a web mail interface and a web postmaster interface for domain accounts. Questions? -- -- gentoo-user@gentoo.org mailing list
