M Michela Salt New member Sep 9, 2015 2 0 0 Sep 9, 2015 #1 I have had my Samsung Galaxy S6 Edge just over 3wks ago and when I try to reply to an email it tells me 'Unable to sign in or encrypt message. Certificate not installed.' How do I resolve this?
I have had my Samsung Galaxy S6 Edge just over 3wks ago and when I try to reply to an email it tells me 'Unable to sign in or encrypt message. Certificate not installed.' How do I resolve this?