For testing I have a GMS server installed at another location (home) than
the GW server (office) itself.
Configured firewalls:
office incoming 7191 from home IP allowed, forwarded to GW server
home incoming 8191, 80, 443 and 3102 allowed, forwarde to GMS server.
This works, with quite a time delay, 30 mins.. Or is this by design?

At the POA I get an error: 6EB Error with GWEvent notification [8925]
I understand the GW server notifies the GSM server there is a change in the
clients inbox/oubox/calendar etc.
Does the GMS sync rightaway in reaction to this notify?
Or, if not, sync is done on a time interval anyway, this could explain the
time delay.

Anyone seen this GWEvent notification error?