Zimbra 8.0.5_GA_5839 (build 20130910123908)
While logged in as a user, I am trying to set as new mail arrives as the check mail interval in the Preferences>Mail>Displaying Mail section. The initial settings are 2 minutes.
If I set 1 minute or As new mail arrives or Manually I receive the error 'Polling interval must be at least 0 minutes' when I press save.
If I set anything above 2 minutes I also receive the error 'Polling interval must be at least 0 minutes' when I press save.
Only when I set 2 minutes I can save.
I have set all the polling values in the admin console to '0' and 'seconds' and verified that these have changed to 'unlimited' when the admin console is reloaded.
I have attached a screenshot, not that it adds much.
Does anyone have any suggestions?