I’ve been struggling to make outgoing emails work for a full day yesterday. When I try to send a test email, there is a popup message ‘There was a problem sending test email’ but I cannot find neither cause of it, nor any trace of errors in log files.
I checked multiple times for typos in app.yml, all settings seem to be right;
I can successfully connect to the smtp server (zoho.com) from both the host and from within the container. So there is no network issue,
rails/production.log doesn’t contain any errors, and of course, nothing reaches the mail server so there is nothing in those logs either…
I tried multiple combinations of options, turning on and off smtp_openssl_ferify_mode, switching authentication from plain to login, so far no luck…
Is there any other place I should look for the explanation?