We have a FE and BE exchange server, the FE is on a DMZ, BE is on local LAN. What is happening is emails with attachments take hours to deliver?
If i go into exchange system manager and look at queue under FE, it shows the link with BE is in the "retry" state and if i go into there and look at waiting emails they all have attachments. I can "force" connection, still no good. It comes back with "the connection was dropped by remote host"???
If i let it wait, it will eventually; about 4-6 hrs, deliver the email locally??
What can i check ???