I debated if this post belongs here or in add-on secontion but since the config part is within openhab.cfg I opted for here.
Ok. I have problems using SSL as uthentication it seems. I basically wonder if the mail:email@example.com must be an email address or if it can be something like mail:username=xy1234.
This is my configuration:
I only see: >>>>>Sending data QUIT<<<<<< in the log. No EHLO etc. Also: org.apache.commons.mail.EmailException: Sending the email to the following server failed : mailout.privat.bahnhof.se:465 showing that at least openHAB is resolving the smtp server correctly. Then a whole lot of java errors that may or may not be needed to resolve this according to the original question.