6.3.240. sort

Type: sort order
Default: date

Specifies how to sort messages in the index menu. Valid values are:

   date or date-sent
   date-received
   from
   mailbox-order (unsorted)
   score
   size
   subject
   threads
   to

You may optionally use the reverse- prefix to specify reverse sorting order (example: set sort=reverse-date-sent).