User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:184.108.40.206) Gecko/20061208 Firefox/220.127.116.11 Build Identifier: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:18.104.22.168) Gecko/20061208 Firefox/22.214.171.124 Using the groupwise IMAP gateway as server, filtering for certain tags is generally ignored in the search window (using Thunderbird 2.0b1). I can correctly specify the filter "Tags|contains|Important", but executing the search still gives me all messages independent of the tags they contain Reproducible: Always
my guess is that Groupwise either doesn't support keywords on the server, or doesn't support searching over user-defined keywords. In either case, an awkward work around is to execute your searches offline.
marking this as a dup of a later bug, which describes the problem better.