Correspondence jokes

I keep getting these letters from this little girl every year on Father's Day. I told the orphanage to stop letting her send these.

So in prep class, the students were asked to write a letter to their grandparents for Grandparents Day.

Little Johnny's friend, Little Sally, wrote things like, "Thank you," and, "You are so nice!" And Little Johnny goes, "What are you doing? You got it wrong!" So Sally says, "What do you mean? It's a letter." Little Johnny says, "Why did you do it like that? Just write a letter from the alphabet like the teacher said!" Then he says, "I wrote a J to remind them of me!"

What is mail? Boring.

Someone told me that you can let out all your anger by writing letters about everyone you hate and then burning them... But I was just wondering... should I keep the letters?

What starts with E, ends with E, and has only 1 letter in it? An envelope.

What starts with e, ends with e, and only contains one letter? -- An envelope.

What has more letters than the alphabet? -- The post office.