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I have an application that needs to send e-mails, but it only supports standard plain SMTP over port 25. We are using Google GSuite though, so sending emails over port 25 is not possible.
Is there a program that can listen on port 25 and relay all mails to smtp.google.com where I authenticate and use TLS?
It should be a simple solution, I am not looking for a full blown qmail or sendmail solution.
Bart Friederichs
Posted 2019-02-12T14:42:55.507
Reputation: 1 000
Have you seen this? https://superuser.com/questions/1365179/advanced-port-redirection-windows-firewall
– GabrieleMartini – 2019-02-12T15:45:39.840@TDK thanks, but I am looking for a higher level proxy, not just plain port forwarding. The application will need to log in to GMail and do TLS as well. – Bart Friederichs – 2019-02-12T16:20:20.993