Am 25.10.2011 04:30, schrieb Poh Yong Hwang: > Hi all, > > New to this mailing list here. > > I have a requirement to setup a mail system for 200,000 users and it > needs to be Postfix for SMTP and dovecot 2 for IMAP. > > May I know what is the best setup for such an implementation? Can > postfix be clustered?
there is not really need of "real cluster" postfix do i.e loadbalancing and/or good mx dns strategy more heavy then postfix is prepare setup for simultan use imap/pop for such amount of users also here loadbalancing and/or dovecot proxy might be used perhaps look on the dovecot site for examples how to setup you might need cluster the mailbox storage i.e with drbd and ocfs2 or nfs , san etc also might also need clustered database (sql) or ldap for authing and other stuff but there are many ways to goal this, depending to your local stuff and finance, you should contact professionals for such setup to help > > Thanks! > Yongsan -- Best Regards MfG Robert Schetterer Germany/Munich/Bavaria
