I have an Exchange 5.5 sp3 dedicated as an IMS server. There are two other 5.5’s in two offices that are connected using site connectors. All internal mail and outbound function well. Inbound delivery has moments of interruption(hours to days). If left alone the problem resolves itself. All services are running and nothing shows up in the event viewer. IMS logging shows mail delivery but does not deliver to receipients mailbox. ???
