We have been noticing significantly "slow" delivery performance when users send out messages to 100+ or so recipients. By monitoring the SMTP queues, it appears that there is a bottleneck associated with the number of simultaneous outbound SMTP connections that Exchange allows.
After some research, we think that the answer is:
- Open the properties of the "Default SMTP Virtual Server"
- Select the Delivery Tab
- Click the "Outbound Connections" button
- Change the "Limit Connections to:" and "Limit Connections per domain to:" parameters
When we click the "Outbound connections button, we receive this error "Please ensure that the outgoing connections limit is greater than or equal to the per domain outgoing connections limit.", and the only option is to click "OK".
This error led to trying to modify the Default SMTP Server via the "Internet Services Manager". When we try to open the "Internet Services Manager", we receive this error "Error connecting to <server name>: The system cannot find the path specified. Do you wish to attempt to connect to it in the future?"
Mail is flowing, OWA is working, etc., but it appears that IIS and Exchange have stopped communicating. Microsoft KB 320202 describes how to reinstall IIS and Exchange from scratch, but I really just want to recreate the links between IIS and Exchange.
If anyone knows how to this, please let me know.
Thanks,
BSV
IF THE AUTOMOBILE INDUSTRY HAD EVOLVED THE WAY THAT THE COMPUTER INDUSTRY DID, A ROLLS- ROYCE WOULD COST $100, GET A MILLION MILES TO THE GALLON, AND EXPLODE ONCE A YEAR KILLING EVERYONE INSIDE. – AUTHOR UNKNOWN
After some research, we think that the answer is:
- Open the properties of the "Default SMTP Virtual Server"
- Select the Delivery Tab
- Click the "Outbound Connections" button
- Change the "Limit Connections to:" and "Limit Connections per domain to:" parameters
When we click the "Outbound connections button, we receive this error "Please ensure that the outgoing connections limit is greater than or equal to the per domain outgoing connections limit.", and the only option is to click "OK".
This error led to trying to modify the Default SMTP Server via the "Internet Services Manager". When we try to open the "Internet Services Manager", we receive this error "Error connecting to <server name>: The system cannot find the path specified. Do you wish to attempt to connect to it in the future?"
Mail is flowing, OWA is working, etc., but it appears that IIS and Exchange have stopped communicating. Microsoft KB 320202 describes how to reinstall IIS and Exchange from scratch, but I really just want to recreate the links between IIS and Exchange.
If anyone knows how to this, please let me know.
Thanks,
BSV
IF THE AUTOMOBILE INDUSTRY HAD EVOLVED THE WAY THAT THE COMPUTER INDUSTRY DID, A ROLLS- ROYCE WOULD COST $100, GET A MILLION MILES TO THE GALLON, AND EXPLODE ONCE A YEAR KILLING EVERYONE INSIDE. – AUTHOR UNKNOWN