Mail inbox empties itself
Every so often my mail inbox empties itself except for the previous 9 days emails. This happens irregularly. It happened continually when I first bought this computer then it stopped for 2 months and now it just happened again. Last night, all my emails were there and this morning they are gone (except for last 9 days ). I'm running os 10.11.4 on an iMac (late 2015).
Anybody run in to this before? Any suggestion? Thanks you!
iMac