Hey @flamber, I finally found a way to solve it. If someone faces the same problem using metabase locally, just create a .jks file:
keytool -genkey -alias default -keystore myKey.jks -dname "CN=myServer, O=IBM, C=CN"
-storepass passw0rd -keypass passw0rd -storetype jks -validity 90 -keyalg RSA
After that, we must apply it on env vars, in my case I am using Windows 10, so I did:
That's it! Now I'm able to send e-mails (TLS and port 587)
See ya! 