We have a really strange problem which started a couple of weeks ago - we administer two domains, one internal and one for our biggest client. We have an Exchange server in each organisation. When members of domain x invite members of domain y to a meeting, they appear to be one hour early in the invite when received by user in domain y. This is occurring for any and all users, but only between domains - not internally on domain x or internally on domain y I.E. it only happens when domain x invites someone in domain y to a meeting.
It seems like a time zone issue, but I checked the time zone on the Exchange servers, Domain Controllers, then wrote a script to check the time zone in the registry on all the workstations in both domains, and still no go.
Any suggestions would be much appreciated. Both servers are running Exchange SP3, Win2k SP4.