Fastmail.plist

{
  // Keybindings to emulate Fastmail shortcuts in MailMate
  // From: http://fastmail.wikia.com/wiki/KeyboardShortcuts
  // Created by Jeffrey Horn <hello@jrhorn.me>

  "n"       = "nextMessage:";
  "p"       = "previousMessage:";
  "j"       = "nextThread:";
  "k"       = "previousThread:";
  "o"       = "openMessages:";
  "\U000D"  = "openMessages:"; // Enter
  "\U000A"  = "openMessages:"; // Return
  "y"       = "archive:";
  "m"       = ( "toggleMuteState:", "archive:" ); // FIXME: Should be 'markAsMuted:'
  "e"       = "expandThread:"; // FIXME: should be 'toggleThread:'
  "E"       = "collapseThread:"; // extra, not in Fastmail by default
  "g"       = "goToMailbox:";
  "/"       = "mailboxSearch:";
  "#"       = "deleteMessage:";
  "d"       = "deleteMessage:";
  "m"       = "moveToMailbox:";
  "!"       = "moveToJunk:";
  "r"       = "reply:";
  "a"       = "replyAll:";
  "c"       = "newMessage:";
  "f"       = "forwardMessage:";
  "s"       = "toggleFlag:"; // extra, not in Fastmail by default

  "z" = "undo:";

  // Only in MailMate
  "N" = "moveDownAndModifySelection:";
  "P" = "moveUpAndModifySelection:";
  "J" = "moveDownAndModifySelection:";
  "K" = "moveUpAndModifySelection:";
  "Z" = "redo:";

  "." = {
    "r" = "toggleReadState:"; // FIXME: should be 'markAsRead:'
    "u" = "toggleReadState:"; // FIXME: should be 'markAsUnread:'
    "p" = "toggleFlag:"; // FIXME: should be 'markAsFlagged:'
    "n" = "toggleFlag:"; // FIXME: should be 'markAsUnflagged:'
  };

  "*" = {
    "a" = "selectAll:";
    "r" = ( "selectWithFilter:", "#flags.flag = '\\Seen'"); // Selects all mail you've read.
    "u" = ( "selectWithFilter:", "#flags.flag !=[x] '\\Seen'"); // Selects all unread mail.
    "p" = ( "selectWithFilter:", "#flags.flag = '\\Flagged'"); // Selects all starred mail.
    "n" = ( "selectWithFilter:", "#flags.flag !=[x] '\\Flagged'"); // Selects all unstarred mail.
  };

  "'" = {
    "a" = "selectAll:";
    "n" = "deselectAll:";
    "r" = ( "selectWithFilter:", "#flags.flag = '\\Seen'"); // Selects all mail you've read.
    "u" = ( "selectWithFilter:", "#flags.flag !=[x] '\\Seen'"); // Selects all unread mail.
    "p" = ( "selectWithFilter:", "#flags.flag = '\\Flagged'"); // Selects all starred mail.
    "n" = ( "selectWithFilter:", "#flags.flag !=[x] '\\Flagged'"); // Selects all unstarred mail.
  };
}

/*
Not included above:

x = Select conversation
u = Refresh all sources
% = Permanently deletes all messages from any folders in the selected conversations
L = Displays external images

other various keys relevant to Fastmail's unique UI

// composer
Ctrl-Enter = send message
Ctrl-s = save message to Drafts folder
Shift-Alt-Ctrl-Backspace = discard message being composed
*/