'Send a test email' from Administration -> Settings -> Email notification produces:
An error occurred while sending mail (SMTP-AUTH requested but missing secret phrase)
changed configuration.yml according to http://www.redmine.org/projects/redmine/wiki/EmailConfiguration:
Redmine version 3.3.2.stable
Ruby version 2.1.9-p490 (2016-03-30) [i386-mingw32]
Rails version 184.108.40.206
Database adapter Mysql2
Restarted all services after changes using bitnami redmine stack manager. Email server is a Zimbra server with SSL. It seems not to matter what settings I put in configuration.yml I get same error. Thanks for any help you can give.