Clue: Mail service made obsolete by the transcontinental telegraph

Answer: PONYEXPRESS

Length: 11

---

Similar Clues:

• E-mail service, for short (AOL with 3 letters)
• ___ Mail: online service (AOL with 3 letters)
• GI mail service (APO with 3 letters)
• Service-mail initials (APO with 3 letters)
• Service mail initials (APO with 3 letters)
• Service mail drop: Abbr. (APO with 3 letters)
• Made aware of an e-mail, in a way (CCED with 4 letters)
• E-mail options, and this puzzle's theme (CCS with 3 letters)
• Refrigerators made him obsolete (ICEMAN with 6 letters)
• "Little ___, who made thee?": Blake (LAMB with 4 letters)