Maps the mail database entries to the files they were created from. Useful only for debugging or administration purposes: the files may be deleted depending on the administrator's policy.
Structure of files
mail_idinteger
Unique internal identifier of the message. There is intentionally no foreign key to mail.mail_id to be able to trace import of messages with this table even after these messages have been deleted.
filenamecharacter varying(300)
Path of the file from which the message has been imported.