Archiveopteryx implements the ANNOTATE extension, which enables IMAP clients to store and manipulate mailbox meta data on the server. The extension is still a draft and support for it is very unusual.
This extension can be used to store a variables on each message in a mailbox, search on messages that have a specific value, construct a view onto a mailbox that contains only messages with a specific value, etc.
In case of questions, please write to email@example.com.
Last modified: 2010-11-19