I'm having difficulty troubleshooting an issue and I really could use some assistance if anyone can.
The issue is like the title says, auto-archive is deleting some emails (about 4GB so far) instead of archiving them.
What things have I checked?
-any settings on Exchange / GPO - nothing there and no other users (from 40ish) reporting similar issue.
-size of archive file (it's 8GB currently)
-scanpst.exe - no errors found
-new mail profile - created a new one and that hasn't changed anything.
-auto archive settings are being applied to all folders and there aren't any subfolder settings that would conflict with this as far as I can see.
At first the issue was that the auto archive didn't appear to be doing its job, then we found the threads about it running on the last modified date rather than the sent / received date. I added the reg entry about ignoring last modified time and that appeared to do the job, however the next working day the user discovered that the emails were not archived but had been deleted. So I have recovered them and am now looking for a reason as to why these were deleted and not archived.
Any help or other things I can try would be greatly appreciated.
EDIT: further reading up on this prompted me to launch Outlook in safe mode and check the auto archive settings there. When I did, the settings did not match the normal mode settings. It looks as though they have never been set. Is this expected behaviour?