rake redmine:email:receive_imap RAILS_ENV="production" host=mail.mycompany port=143 starttls=true username=username@mycompany.com password=XXXXXX

/srv/redmine/public_html/lib/redmine/imap.rb:34:in `check'
/srv/redmine/public_html/lib/tasks/email.rake:117:in `block (4 levels) in <top (required)>'
/srv/redmine/public_html/app/models/mailer.rb:438:in `with_synched_deliveries'
/srv/redmine/public_html/lib/tasks/email.rake:116:in `block (3 levels) in <top (required)>'
/usr/local/rvm/gems/ruby-2.3.3/gems/rake-12.3.1/exe/rake:27:in `<top (required)>'
Tasks: TOP => redmine:email:receive_imap