As of today, all my emails before 12/15/18 in "IN" folder are vanished.
Why does that happen and whay not retail indefinetly.
Fortunately I still have them in my backup comcast email using MOZILLA THUNDERBIRD (configured for Comcast).
Somehow Xfinty Email sporadically makes IN FOLDER emails get totally deleted and lost!
THIS IS NOT THE FIRST TIME
Your email system is VERY unreliable, particularly for email retention in "IN FOLDER"!