Microsoft IIS SMTP delivery interval
Posted on 2008-10-27
We are delivering mail through a local Win2003 server with the SMTP server built into IIS. While delivery is virtually always succesful, we are seeing a general delay in delivery.
It appears that once a message is queued, it takes about 50-60 seconds for the SMTP engine to react to the message being in the drop location and to start the external delivery process.
Is there any refinement (would imagine this would be a registry edit?) to be made to improve the pickup interval? Looks like default may be 60 seconds, would like to have a much shorter interval (max 15 seconds).