As far as I am aware, filtering SMS isn't possible.
As for filtering email, you may have to change your thinking a bit but it does work. But it may not work quite in the way one intuitively expects (hence the 'change your thinking' bit).
1) Without filters = BBAlerts will alert you on all new emails (e.g. Yellow flashing LED and vibrate).
Now, setting up email filters is pretty straightforward, let's say you want to filter (note: not filter out) emails from your friend,
. So, you set up a filter for that address.
Set a filter name, e.g. Joe Blow filter, and add email address, e.g.
, or a keyword filter, e.g. Important Mail.
Save these filters (press escape and you will be prompted to save). Now I am not sure why there are duplicates sometimes but I just delete extras.
Then, in Options, enable Email Filters.
2) With filters = BBAlerts will alert you only on the emails that match address or keyword filter criteria, it will NOT alert you on any other emails.
It is important to read #2 carefully. It does not alert you on emails from
UNLESS the email has the keyword Important Mail. But it will alert you on all emails from
. If you want to be alerted for emails from both johnny and joe, you need to set up filters for both of them. If you want alerts on all emails, it is best not to use filters at all. Or set up a lot of filters, up to you.