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We've recently moved our website to an external host which I think may be throwing us up some mail issues.


Our servers were all hosted internally (web, mail etc) so all A records for our pointed to the same IP address.

Occasionally I would see that Outlook would be looking at and not

As it still reached the same destination from a WAN perspective it wasn't an issue.

Now that the A record for now points to our externally hosted website, I've had a couple of instances whereby I've needed to change the address from to

Having to do this once per machine wasn't a major problem, however it seems that some of the computers are reverting to, meaning that I need to change the address manually again..

Does anyone know why its changing back, and more importantly, how do I stop it? Our server is accessible internally and externally as Kerio is configured so that the domain is, the internet hostname is



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Ok so further investigation I've found the cause, but not sure why..

In Outlook, no matter what I set the server address to whether its or upon connection the address changes to - does anyone have any ideas as to how I stop the Kerio server changing its address?
Pavel Špalek (Kerio)

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Outlook uses autodiscover service to configure account. Please see details here: on/mail-delivery-and-dns-records/how-to-configure-an-environ ment-to-enable-autodiscover-feature-with-kerio-connect-870.h tml
So you must configure your DNS properly. There is also an option to disable autodiscover in Outlook.

Pavel Špalek
developer - Kerio Connect
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