I have GW8 (have not put on HP1 yet) running on OES Linux (with the latest patches). Everything works, but this is the third time gwia has just stopped receiving email.

When I go to the <domain>/wpgate/gwia/wpcsin/4 directory I see all my stuck inbound mail with a couple of them zero long. I delete the zero long files and everything starts flowing through. Yesterday when this happened, every time a user tried to send an email, it would say "sending" in the lower left corner of client but would not send.

Any idea on what is causing the zero byte email to stick in the normal priority inbound queue?