Crossword clues for Mail (to) 4 letters:MAILSnail ___ (slow post)MAILSir Lancelot's armorMAILVacationer's accumulation, perhapsMAILKnight dress?MAILHard wear?MAILPackages and lettersMAILFour letters?MAILRelatively lightweight armorMAILKind of orderMAILWord with fan or snailMAILLettersMAILKnight's coatMAILPostal deliveryMAILKnight's protectionMAILIt might be stopped on vacationMAILOutdoor box contentsMAILThe Globe and ___MAILReader responses, possiblyMAILSend Christmas cardsMAILSomething to put in a slotMAILWhat's carried by some carriersMAILIt may be registered or certifiedMAILThe check's in the ___MAILFlexible armorMAILIt may be junkMAILYou've Got ___MAILBills, e.g.MAILIt may be certifiedMAILSir Galahad's armorMAILSnail follower?MAILIt's often junkMAILPostMAILRegistered ___MAILIt's in the bagMAILCorrespondenceMAILCanada Post concernMAILCubbyhole contents, maybeMAILVacation cancellationMAILOne means by which to return a ballotMAILBills, etc.MAILPony Express loadMAILIt may be electronicMAILWeekday deliveryMAILPostal worker's loadMAILKnight wearMAILWorld capital that hosted the 2019 Pan American GamesMAILDaily deliveryMAILFollower of {/e/} or {/G/}MAILSend ... or something sentMAILWord before slot or car