[MlMt] custom key bindings not working

[Steven M. Bellovin]

I'm sure I'm doing something wrong, but I don't know what. I have this 
text

{
         "@g"    = ("moveToMailbox:", 
"imap://smb@XXX.columbia.edu/0-good" );
         "@j"    = ("moveToMailbox:", 
"imap://smb@XXX.columbia.edu/0-bad" );
};

as /Users/smb/Library/Application Support/MailMate/smb.plist and I have 
'smb'
in the Custom Key Bindings box with "Enable" checked.

Any clue what I'm doing wrong? (The purpose is to use ⌘g and ⌘j to 
move
messages to my remote SpamSieve mailboxes. 
(https://manual.mailmate-app.com/custom_key_bindings
says that one writes "@" instead of "⌘".)


         --Steve Bellovin, https://www.cs.columbia.edu/~smb