Related Clues:

• Drops in a post office slot
• Faxes, e.g
• Fires off, as a text
• Sends via USPS
• Excites, in slang
• Writes briefly
• Transports, you conclude, in a container ship
• Objective to board ship with dispatches
• Turns on and transmits
• Sends back, I hit really hard, out
• Head of state scraps dispatches
• Turns on broadcasts
• Small butts providing thrills
• Posts, as a letter
• Conveys object on board steamship