Hi ,
This usually indicates a corruption of either the rule or within the mailbox. It could also indicate a corruption in the send/receive settings file (srs-file) of Outlook.
Reset srs-file
Resetting the send/receive settings can be achieved by renaming the srs-file of your profile to .old. You can find the srs-file for your mail profile in;
- Windows Vista and Windows 7:
C:\Users\%username%\AppData\Roaming\Microsoft\Outl ook
- Windows XP:
C:\Documents and Settings\%username%\Application Data\Microsoft\Outlook