Josep pointed me towards a interesting thread on the official BlackBerry forums by QueBall. QueBall did some digging and found some interesting information about how filters are processed in the BIS setup.
- Rules are processed from the top down (which makes sense) but there is no way to reorder a rule so that it is processed before the previous rule
- Rules automatically have implicit wildcards. That means [email protected] will also catch [email protected] in the same filter. Essentially every filter is [email protected] adding a wildcard to the beginning.
That last rule can get really annoying. Say for example you have a friend who has [email protected] and you want to filter his email. That filter will also apply to other emails like [email protected].
Read up on all of QueBall’s finding at this link. I doubt that a ton of people are going to run into this issue but I can see it coming up so its worth knowing.