SmarterMail Receiving Slowly
Posted by Adam Hayes
After wondering why SmarterMail was receiving so slowly after restarting the MailService, I came across this answer. The ASP.net performance counters were becoming corrupt. After chasing this little change for 3.5 hours, here is the simple fix (try at your own risk, your mileage may vary):
We were able to telnet in using the following code and get a 220 message, but the mail server would not respond quickly after that.
telnet mail.yourserver.com 25
Immediately after fixing the corrupted performance counters, everything went smoothly. So if you are testing your mail connection and you are getting a very connection speed (after getting the initial 220 helo) try reseting your performance counters.