Evidently, I don't know how to use the ignore feature on mail or it isn't working as I have tried repeatedly. I did think of putting my buff partner on ignore, but we should not have to resort to such tactics to eliminate this annoying problem.
I cannot be online 24/7 and my buff partner is half a world away from me so we have different schedules. We try to schedule our routine buffs twice daily and near the same time frame. It isn't fair to players for UBI/BB to ask us to miss sleep or miss regular mail so we can avoid their issue!
I just spent another block of time deleting the buff mail. I will come here every time I must do that and bump this up until someone pays attention. Maybe if I sent the Devs 300 plus pieces of spam daily they would get the hint?!