Slow Email Transfer

Helo,We have about 350 servers around the globe. One of our main mail hub is having problems to route messages to Australia. Messages transfer is very slow taking up to 10 hours to transfer. Email routing to all other 349 servers around the world are fine. Just this Australia server is having the issue.

Mail hub is Win 2003, Domino 8.5.1 32-bit.

Australia server is Win 2008 and Domino 8.5.1 FP1 64-bit.

Any help will be appreciated. We already logged a call with IBM but couldn’t find anything.

Thanks in advance

Subject: Slow mail on Australia server

Is the connection between the Hub and Australia servers fast? Have you tried replicating a db between the two servers or opening an Australia db from a Notes client at the Hub-server office? Does Austrlia have enough disk space? How about clearing and deleting mail.box on Australia so Domino creates a new mail.box on startup?