Because I have push email on my phone all newsletters go into my newsletters folder so that my phone isn't buzzing at all hours to let me know there's an email. I also do the same for Apple receipts and o2 bills, Forum emails, and spam.
My newsletters one just filters any email with "Unsubscribe" or "stop receiving these emails" into the folder.
Occasionally they get mis-labelled, but I check them manually once a week to be on the safe side.
I don't really use any forum notifications any more, I only ever use Tapatalk
