Logging the SMTP on Windows Server

SMTP logging helps troubleshoot various things, such as server communication with various sources, helps find lost emails and answer questions "Where's my email?". To enable the service, do the following:

1. Open System Manager. Go to "Administrative Groups" -> "first administrative group" (on small business server) -> "Servers" -> "<SERVER NAME>" -> "Protocols" -> "SMTP"
2. Right click on "Default SMTP Virtual Server" and select "Properties"
3. Once inside, under "General" tab, put a checkbox beside "Enable logging" (Leave at it or select "W3C Extended Log File Format". It can also write the log files to a SQL database using ODBC allowing integration of SMTP logging and general monitoring software.
4. Click "Ok" and close everything.

Unless you've specified a different path, the logs will be here: %systemroot%\system32\LogFiles\

usually under the folder SMTPSVC1