On Friday 04 January 2008 10:30:32 Ugo Bellavance wrote: > > AFAIK, redundancy for mail server seldom uses linux-ha/any other failover > > stuffs. It is most common to use 'backup MX' in DNS settings. So, when > > the main server in unreachable, the sender mail server would try to the > > secondary MX through DNS query. > > That's the easy part, but where do you store the e-mail once you have > accepted it? If the pop/IMAP server is down for a while, people won't > be able to retreive their e-mail... The secondary MX will temporarily store the mails. And when the primary server is up again, it will get all the mail from the secondary. Yes. there will be a down time in terms of mail service for users. Maybe others can recommend a better best practice for this. -- Fajar Priyanto | Reg'd Linux User #327841 | Linux tutorial http://linux2.arinet.org 10:48:39 up 3:14, 2.6.22-14-generic GNU/Linux Let's use OpenOffice. http://www.openoffice.org The real challenge of teaching is getting your students motivated to learn. -------------- next part -------------- A non-text attachment was scrubbed... Name: signature.asc Type: application/pgp-signature Size: 189 bytes Desc: This is a digitally signed message part. URL: <http://lists.centos.org/pipermail/centos/attachments/20080104/293fbf5d/attachment-0005.sig>