E-Mail-Logs and server configuration

I’m having issues to enable mail notifications for my SonarQube instance. When I try to send the test mail via UI, I’m just getting “Configuration invalid: please double check SMTP host, port, login and password.” but I do not see anything in the logs, which would give me other hints like an untrusted certificate or something else. So where do I find the log?

Are email.smtp_username.secured and email.smtp_password.secured required fields? My (internal) mail server doesn’t require authentication.

Must-share information (formatted with Markdown):

  • which versions are you using: SonarQube 9.9 LTS
  • how is SonarQube deployed: Docker


You should start by checking your server logs (specifically web.log, probably). If that’s what you’ve already checked and there’s nothing there, then you should look at your mail server logs.