Related Clues:

• Sends out
• Gives off, as heat
• Sends a letter
• Shoots off
• Uses the USPS
• Makes waves?
• Radiates
• Puts in the post
• Gives forth
• Throws out
• Utters, perhaps
• Casts forth
• Sends via the USPS
• Where holiday delays are common, with "the"
• An anagram for "times"