| || |
I'm a former BB user. Looked for the same functionality, as I had a great set of filters set up on the BIS. There does not appear to be anything like what you are looking for at present. There are on-line based services that will retrieve your mail for you, apply the filters you want, and then forward the mail to you. You just have to use THEIR SMTP or IMAP servers on your device.
I can't recommend any of them - one offered a trial, and I was never able to receive my mail, noting I'm a computer geek, so I should have been able to figure it out.
If you own your own domain, the same services also offer to filter your entire domain's email - that involves making some changes with your domain server, and might work. I never tried it since I could not risk being without access to my email, and I did not want to hand over control of my mail servers to an untested company.