Related Clues:

• Mail away
• Ship or mail
• Text messaging command
• Drop in the mailbox
• Excite, in slang
• RSVP
• Fax, maybe
• Gmail button
• Say something back
• Heed an RSVP
• Email program button
• Use FedEx
• "You --- Me"
• Drop into the mailbox
• E-mail menu choice