Even when replying to a message, you do well to delete the recipient's address and insert it only when you are sure the message is ready to be sent.
Ngisho nalapho uphendula umlayezo, kungumqondo omuhle ukususa ikheli lomamukeli bese ulifaka kuphela uma uqinisekile ukuthi umlayezo usulungele ukuthunyelwa.