How to test and troubleshoot SMTP connectivity issues for external senders to an Exchange Server environment.
Using Log Parser and Protocol Logs to Analyze Send Connector Usage
How to use Log Parser to analyze Exchange Server protocol logs to determine send connector usage.
Generate SMTP Error Statistics using Log Parser and Exchange Server 2010 Protocol Logs
How to generate a report of the number of SMTP errors occurring on an Exchange server using Log Parser and the Exchange protocol logs.