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% replaces any number of letters (la% - lake, lamp)_ replaces one letter (ca_ - car, cat)

Crossword clues for Not yet in the mail 6 letters:

UNSENT: Not yet mailed
UNSENT: Written but not yet mailed
UNSENT: Not yet in the mail
PSS: They come after signatures in snail mail, yet before signatures in e-mail: Abbr.
INBOXES: Places for yet-to-be-answered mail
SENTCOD: Not yet paid for, as a mailed package