I have a lot of filters set up and I get the following error messages on some of them:
‘Cannot remove messages from the folder.’ or
‘You don’t have appropriate permission to perform this operation.’
If I go to the filter wizard and select ‘Run Now’, I don’t always get the messages, but do sometimes. When I run again then they run without errors.
It seems to be certain filters that fail. Usually ‘Junk E-mail’ and several others that I have setup. Some of them I have removed and set them up again and they still fail occasionly.