Is the is_header flag implemented at 2.2?
Yes, it is. Although it's purpose is void nowadays. There is no longer
any reason to retrieve just the message headers from the messageblks table.
I have a need to examine only the headers, specific ones.
I can do this via the IMAP protocol (which I probably will) or possibly through
the database directly. But I wasn't sure just how I would identify the headers
entry and assumed message_blks is_header flag would help.
Is there a better alternative, or just stick with IMAP?
