Related Clues:

• Army base
• Thrill, so to speak
• Order out
• Hitching place
• Sentry position
• Opinion piece
• Use the pony express
• Put in the mail
• Drop in the mail
• Affix for public notice
• Either end of a gate
• "___ in the Clowns"
• E-mail button
• Mail delivery, to Brits
• E-mail action