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Hi there,

I would like to setup Kerio mail server as a backup/secondary mail server, as a failover mechanism, so that if the primary mail server fails, it will store emails as a backup, until it is back online, and it will re-deliver them.

How exactly is this possible in Kerio? I would need it to relay only emails for my domains, say I have,, The primary mail server uses SMTP authentication to verify the user. However, if I add the mailboxes also to the secondary server, and set it not to deliver directly using DNS MX, but with a relay, and the primary is specified, it wont work well. It will store the copy locally in it's mailbox. I need it to send the copy to the primary mail server, when it is online. I also would like it NOT to be an open relay.


CasaSoft, Malta - Web Design & Advanced Web Development

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I too am looking for a similar solution - a way to keep a backup copy of the server, offline, until needed if the main server goes down. It does not need to be an automatic switchover from main to backup but it would need to automatically keep it in sync.

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Try the backup mail services at It's only $12.95 per year per domain. It's inexpensive insurance for your email in case your Kerio Mail Server goes down. The backup mail servers at also employ Spamhaus and greylisting to decrease the spam that tries to sneak in through a secondary mail server.
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