We've upgraded from Zimbra 6 to Zimbra 7 (open source edition). No issues during the upgrade and we have a very basic setup.
Our usual procedure for setting out-of-office is to set this via the account's preferences tab via the admin login. This does not work under 7. You can tick on "send auto reply", save the record, go straight back to the preferences tab and you'll find that the setting is unticked. I've tested this using IE and firefox, Ajax option and HTML option - no change, alwasy unsets. It worked without issue under all the 6 releases.
Setting out-of-office through a user login (or by switching to the account from the admin interface) seems to work, however for various reasons this is not our preferred approach.
Is this a known issue and is there anything I can check/set to bring it back to life?