Problem: Message delivery between GroupWise users in different post offices in the same domain is slower than desired.
Action: Review the stages of message flow between post offices. See "Message Delivery to a Different Post Office" in GroupWise 6.5 Troubleshooting 3: Message Flow and Directory Structure.
Action: If message delivery between users in the same post office is also slower than desired, see Message Delivery Is Slow in the Local Post Office. Resolve problems in local post offices first before troubleshooting problems between post offices.
Possible Cause: The MTA has been installed on a server with insufficient system resources.
Action: Check the utilization and memory on the server where the MTA is running to see if other programs are taking more resources than usual. If the MTA has fewer resources than usual, it can take longer to deliver messages between post offices. Make sure the server still meets the system requirements for running the MTA. See "Agent System Requirements" in "Installing GroupWise Agents" in the GroupWise 6.5 Installation Guide.
Possible Cause: The MTA is not configured optimally.
Action: Go to the server where the MTA is running. Check the MTA agent console to see how busy the MTA is. If the MTA is very busy, it can take longer to deliver messages between post offices. If the MTA needs to handle the current load on a permanent basis, see "Optimizing the MTA" in "Message Transfer Agent" in the GroupWise 6.5 Administration Guide.
Possible Cause: The network itself is busy.
Action: Check network traffic between the servers where the POA and MTA are running. Heavy network traffic can slow down the transfer of GroupWise messages between post offices.
Possible Cause: If the MTA has received a large number of administrative messages, user messages might be delayed because administrative messages are of higher priority.
Action: Check the MTA log file to see what types of messages the MTA is currently processing. See "Using MTA Log Files" in "Message Transfer Agent" in the GroupWise 6.5 Administration Guide. After high priority administrative messages are processed, user messages will be processed.