We are running Domino 6.0.1 servers. When someone sends a large message (lets say 30 MB), and it is trying to transfer over a slow WAN link, mail stacks up behind it. The mail that stacks up is destined for a different server than the one that is on the slow WAN link. Bouncing the router slows the issue. We did not have these problems in 5.0.11. Any ideas or fixes? Thanks.
Subject: Mail stacks up when a large message is sent
Do you have the RouterAllowConcurrentXFERToAll=1 in your notes.ini or config doc?
RouterAllowConcurrentXferToAll
This variable determines whether the router uses multiple concurrent transfer threads for inter-domain Notes routing. This variable was introduced in 5.0.3.
Setting RouterAllowConcurrentXferToAll=1 allows multiple transfer threads between two servers in the same Notes Named Network (NNN), two servers in different NNN, and two servers in different domains. Setting RouterAllowConcurrentXferToAll=0 (or simply removing it from your server’s NOTES.INI file) results in the router distributing transfer threads as follows:
If the destination server in the same NNN, the router uses multiple threads for transferring mail to the same destination server.
If the destination server in the same domain but a different NNN, the router uses one thread per destination server.
If the destination server is in a different domain, the router uses one thread per destination domain.
With RouterAllowConcurrentXferToAll=1, the router uses multiple transfer threads in the last two situations