How to identify servers that are relaying through Exchange Servers
Posted on 2011-10-20
My company is migrating from Exchange 2003 to 2010. We have dozens of systems that relay email through our Exchange Servers but we don't have all applications well documented so I'm pretty sure when Exchange 2003 goes down, many systems will stop sending mails.
Exchange SMTP Logs are enabled. How could I filter it out to show me all IP's that are relaying emails through this server?
If it can't be done from log files, Do you know any tool that can be use to accomplish that task?