Dear sir my name is ritesh i have setup outlook on my personal domain

my name is ritesh i have setup outlook on my personal domain but i face one problem in few email id one of them is "*** Email address is removed for privacy ***"  in this email id will create in February month in this email video calling option and  Skype account merge not show in messenger bottom skype icon not shown . few day ago i set one more email id  " *** Email address is removed for privacy ***"   in this email id all option come in messenger skype icon show in bottom of messenger please give provide me solution for that .

if any setup of setting let me know i already install skype plguin also but problem not solved