oap-mail-password-authenticator.parameters.username = login
oap-mail-password-authenticator.parameters.password = password
oap-mail-smtp-transport.parameters.host = smtp.gmail.com
oap-mail-smtp-transport.parameters.port = 587
oap-mail-smtp-transport.parameters.tls = true
To disable message sending just turn off scheduling
oap-mail-mailman.supervision.schedule = false
oap-mail-queue.parameters.location = /where/to/store