Related Clues:

• Letters that can't be found at the post office
• Corn unit
• Beer holder
• Has the wherewithal to
• Preserve
• It's sent with a click
• Quick correspondence
• Plating choice
• Part of the alloy britannia
• Message by modem
• Coffee container
• Jail, slangily
• Potential virus carrier
• Garbage collector?
• Online letter