Please add the ability "Send Test Message" when adding an SMTP server. Currently to do this under Zabbix one must jump through hoops. For example, you must create Trigger, Action and set that to Alert or Fail. This sucks because it makes it difficult to know if the Mail functionality isn't working OR if the Triggers / Actions aren't working.

It should be a very simple matter to add Send Test Message functionality to Zabbix.