宏希 = Hiroki, I think.
受信メール = Inbox (Literally it's "Recieved Mail" but "Inbox' is the English term)
せら: It should be the name of the person who received the message?
TVちゃんぴょん: Reference to TVチャンピオン, a Japanese TV series that pits "masters" of various disciplines against each other in a...