[keycloak-user] Logging from execute-action-email?

[Andy Yar]

Hello,
I'm trying to debug sending of email notifications in my standalone
installation of Keycloak 2.2.1.Final.

When I manually trigger a notification in Admin Console it spits out an
alert message: "*Error!* Failed to send email to user". However, my
standalone/log/server.log is empty - no ERROR, stacktrace, nothing...

Where is the proper place to turn on logging of these exceptions?

Thanks