Been using it since it was first announced (had an invite quickly) and have 100s of email addresses going there. The spam filtering is perfect: zero spam and ze

Been using it since it was first announced (had an invite quickly) and have 100s of email addresses going there. The spam filtering is perfect: zero spam and zero false positives. I tried to move but two issues: too much email (other systems immediately choke when I try to transfer; I would have to start from scratch) and spam filters for the ones I try simply do not work: my box fills up with 1000s of spam emails per day and after training for a few weeks that does not get better.