Lyrics:

I gave a letter to the postman
He put it his sack
But in early next morning
He brought my letter back
She wrote upon it:
Return to sender, address unknown
No such number, no such zone
We had a quarrel, a lover's spat
I write I'm sorry but my letter keeps coming back
So then I dropped it in the mailbox
And sent it special D
But in early next morning
It came right back to me
She wrote upon it:
Return to sender, address unknown
No such person, no such zone
This time I'm gonna take it myself
And put it right in her hand
And if it comes back the very next day
Then I'll understand the writing on it
Return to sender, address unknown
No such number, no such zone