DaMoose wrote:
10.2.4.3 IP is our SMTP relay and it is Windows 2000 SP4 which I used
TZedit.exe Update tool to change the time. I've rebooted the server last
night, not right after I update the region settings. Still receiving 1 hour
ahead with Outlook.

Do you think I need to change the time of our firewall too? I don't see why
that would create the issue though.

I suspect Outlook is doing something stupid with the headers.
Thunderbird will just use the Date: header to display the date, but MS
has a propensity to do thing like try and guess a "better" way to do
things. I don't know if that's what's happening here or not, but the
evidence points in that direction.