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 company.com pointed to the same IP address.
Occasionally I would see that Outlook would be looking at https://ourcompany.com/EWS/Exchange.asmx and not mail.ourcompany.com
As it still reached the same destination from a WAN perspective it wasn't an issue.
Now that the A record for ourcompany.com now points to our externally hosted website, I've had a couple of instances whereby I've needed to change the address from https://ourcompany.com to https://mail.ourcompany.com
Having to do this once per machine wasn't a major problem, however it seems that some of the computers are reverting to https://ourcompany.com, 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 mail.ourcompany.com. Kerio is configured so that the domain is ourcompany.com, the internet hostname is mail.ourcompany.com.
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