The protocol used most often to transfer mail from a server to the email program on your computer is POP, the Post Office Protocol.
Eudora uses POP, too. This made Steve Dorner, the main author of Eudora in 1990, think of the short story "Why I Live at the P.O." (compare prices), which he had read in college.
The story is by the great Southern American writer Eudora Welty. The great email program Eudora is named after her.

