This document is supposed to be a repository of "special characters"
used in Cyrus naming of users, folders, directory paths, etc.
--- Current Uses ---
Character: +
- (LMTP) Separation of postuser and target mailbox for delivery
- (LMTP) Separation of username and submailbox for delivery
- (IMAP) Flag at end of login name that indicates that LIST should
return LSUB results (when imapmagicplus is set)
- (POP3) POP a subfolder directly (e.g. rjs3+foo POPs user.rjs3.foo)
Character: . /
- [mailbox names] Hierarchy separators
Character: ^
- [mailbox names] In unixhierarchysep, ^ is the part of the internal
name that represents a '.'
Characters: @ %
- [usernames] These are realm separators for the purposes of authentication
--- Future Uses ---
Character: +
- IMAP LIST filters (e.g. rjs3+foo will only list folders that match foo*)
-- possibly other interpretations here:
- rjs3+foo will do an effective chroot(foo.)
- rjs3+foo will only list folders in user.rjs3.foo*