search for: my_expire_info

Hi, it seems that Squirrel mail uses Mailbox annotations for storing Expire times on the Server. It's an Cyrus server currently. (I've no clue how cyrexpire is able to read it's information from the annotiations) Does dovecot support some similiar mechanism? Or - does anybody know anything about how it's supposed to work on Cyrus and how it can be emulated/simulated with dovecot?