Mail won't download any e-mail untill i disable eset nod32 protection temporaly after it downloads some or all mail it gives an error 0x80090308
The current build is not an insider / beta build and has been pushed out to everyone.
I started having problems since around nov 18 or so not sure if it worked before that can't be sure.
I tested calendar app in windows 10 to see if that syncs properly and it does, so seems syncing contacts and calendar works fine.
The current vision of nod32 anti virus is nod32 9.0.318.20 definitions 12600 (20151120)