on a Windows Server 2008 R2 machine the SMTP service crashes without generate any event. I Set the service to restart when it fails but it doesn't.
How could I face this problem? Is a common issue?
Thank you very much!
Not clear if your local mailer to win2008 connection is being reset or if win2008 to recipient domain connection is reset. If you cannot connect from your local PC to win2008 server, check if you are firewalled by your ISP on port 25.
If you don't see the above, you are blocked on port 25. If you see the above info, then may be your server IP is blacklisted and the recipient server is dropping the connection. Use a blacklist checker to check your IP.