search for: imap_extensions

...ension] Specifically I would like to be able to: a) ask for mail_uid/GUID of specific message in mail store b) get list of folders containing copies of message with given mail_uid/GUID http://wiki2.dovecot.org/MailboxFormat/dbox#Multi-dbox Related: https://developers.google.com/google-apps/gmail/imap_extensions#access_to_the_gmail_unique_message_id_x-gm-msgid [message to guid mapping] https://developers.google.com/google-apps/gmail/imap_extensions#access_to_gmail_labels_x-gm-labels [message to list of folders mapping]