Mail Delivery Subsystem 

Who’s “mailer-daemon” – Just Like to Know,

Returning my Words from Where they Should Go.

Not Nice in the Least – Just Turns them Around,

No Reason is Given – Just Rude and Shut Down.

No, “You might Try This” – “You might Try that,”

Rather quite Rude – Being a Brat!

If met Face to Face – Would Just have to Say,

Is that How your Mom Taught You to Play?