User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:1.1) Gecko/20020826 Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:1.1) Gecko/20020826 I opened mail as normal to be advised via a pop-up alert that "Your filters have exceeded the limit of 50 custom headers. Please edit the rules.dat file, which contains your filters, to use fewer custom headers." I haven't added any new message filters for a number of weeks, and only one or two were custom filters. No rules.dat file seems to exist for me either. Now every time a message is popped the error appears, and no filters are working. If I go to the message filters window no filters are listed at all. Reproducible: Didn't try Steps to Reproduce: Don't know how to reproduce this one as there is no apparent reason for it occuring.
*** This bug has been marked as a duplicate of 166517 ***
marking verified as a duplicate