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Hi all,

Does anybody have any expierence with setting up a secondary mailserver (backup) besides a kerio mailserver ? Our email is directly pushed to our ip-address. If our mailserver is down for whatever reason the email will fall back to the providers mailserver and it will take days before it will be delivered again. For this reason I want to have a backup mailserver which will collect all email when our primairy mailserver is down and which delivers it directly when it comes available again.

Best regards,


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Hi Marcel

Normally this is done with a second MX record in DNS.

Then you have to use the ETRN (extended turn) functionality of KMS to establish a backup mail server. See ETRN documentation in KMS help.

If you need details, let me know, I can help you. (pascal.devries at



Dexion AG - The Blackberry Specialists in Switzerland

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So how exactly do I setup the second mail server?

Would I need to add the users domain and details on both the first and second servers?

Anything else I would need to know to have the second mail server fully take over when the first is not available.


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Backup MX has saved me a few times. Look into using something like this:

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This looks like the service I am after. I am currently using a Pop3 Malibox but it is a pain as Kerio has no automatic sorting.

Can anyone reccomend a UK company that offers this service?

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We have Nildram's servers (our ISP) as our secondary MX - works a treat.
Might work for non-nildram customers, but I wouldn't rely on it (they might just turn off the option).
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