Date: Mon, 21 Jun 2004 13:20:06 -0400 From: Bill Moran <wmoran@potentialtech.com> To: questions@freebsd.org Subject: What's the best possible email failover solution Message-ID: <20040621132006.2b1a296f.wmoran@potentialtech.com>
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Hey, I know questions like this get asked a lot, but I'm going to be really specific. I know how to set up failover with a backup MX. That's not what I'm looking for. We have a cyrus-imap server with lots of users connecting via IMAP, while everything gets backed up, this only happens once a night. Thus, if the server were to go up in smoke right before the backup occurred, we'd lose something like 23 hours worth of emails. Does anyone have a solution to provide real-time mirroring of IMAP folders? I don't mind manual intervention to get the thing running again, I just want to ensure that if an email is received, it's on both machines and can't get lost. Is there a way to get real-time replication of cyrus (I'm no cyrus guru, another fellow set this up) I'm not tied to Cyrus either, if there's another solution, I'd be happy to implement it. I have an idea ... by using Dovecot with PostgreSQL storing the actual mail folders, with Slony installed to provide real-time replication of the Postgres database ... I don't know if Dovecot is able to store the actual mail folders in Postgres yet, though ... Anyone? -- Bill Moran Potential Technologies http://www.potentialtech.com
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