• This configuration is for SMTPS and which uses publicly trusted TLS certificates that need to be verified.
• Assumes one is using SMTPS on port 465, change smtp.example.com to your desired SMTPS server.

1. Extract emailrelay-2.0-w64 into C:\NetXMS\emailrelay on the same system as the NetXMS server, change paths to suit your own environment

2. Create spool directory: C:\NetXMS\emailrelay\spool

3. Create config directory: C:\NetXMS\emailrelay\config

4. Place a Trusted CA Certificate bundle into C:\NetXMS\emailrelay\config\cacert.pem (Eg: From Mozilla or curl for public CAs or you'll need to make your own if your SMTPS server uses certificates signed by an internal CA)

5. Create C:\NetXMS\emailrelay\config\email.auth and put in any relevant authentication
   Example: client plain netxms@example.com PasswordHere

6. Create batch file to start emailrelay.exe: C:\NetXMS\emailrelay\start-emailrelay.bat

start "emailrelay" "C:\NetXMS\emailrelay\emailrelay.exe" --interface=127.0.0.1 --interface=127.0.0.1 --port=25 --as-proxy=smtp.example.com:465 --client-auth=C:\NetXMS\emailrelay\config\email.auth --client-tls-connection --client-tls-required  --client-tls-server-name=smtp.example.com --client-tls-verify=C:\NetXMS\emailrelay\config\cacert.pem --spool-dir=C:\NetXMS\emailrelay\spool --pid-file=C:\NetXMS\emailrelay\emailrelay.pid --no-syslog

Change smtp.example.com to your desired SMTPS server.

7. Create C:\NetXMS\emailrelay\emailrelay-service.cfg

dir-config="C:\NetXMS\emailrelay\config"

8 ) Run as Administrator to install service:

C:\NetXMS\emailrelay\emailrelay-service --install

Remember to document the existence of the cacert.pem bundle and the need to manually update it.