listescape plugin

listescape-plugin

listescape_char

Default: \

The Listescape plug-in allows mailbox names to contain characters that would otherwise be rendered illegal by the underlying storage system.

The following restrictions otherwise are in effect:

Maildir++ layout disallows using the "." character (unless LAYOUT=fs is used)
The "~" character cannot be used at the beginning of a mailbox name
The "/" character is disallowed on POSIX systems