Just deployed ZCS 5.0.2 in a multi-server configuration, and nearly everything seems to be going well enough, except the daily reports are not working. Or more properly, not being emailed. If I launch the report process manually, the report generates properly, if I run it with 'debug' set it returns the following:
Sending daily report to firstname.lastname@example.org via localhost
Failed to email report: Connection refused at /opt/zimbra/zimbramon/lib/Mail/Mailer.pm line 150.