dovecot - Apr 2011 - Change/add mail header via IMAP

Hello.

I create RoundCube plugin and I have question. I want add mail header
and I see 2 way:

1) change file via filesystem (mailbox in maildir format);
2) change header via dovecot.

I think 1) bad way. But I do not know dovecot support change head
information or not? My by via IMAP commant? same programm (LDA?)? May
be it impossible via dovecot?

On Mon, 2011-04-04 at 15:52 +0400, ??????? ???????? wrote:
> I create RoundCube plugin and I have question. I want add mail header
> and I see 2 way:
> 
> 1) change file via filesystem (mailbox in maildir format);
> 2) change header via dovecot.
> 
> I think 1) bad way. But I do not know dovecot support change head
> information or not? My by via IMAP commant? same programm (LDA?)? May
> be it impossible via dovecot?
It's not possible to modify existing messages. If you manually modify
mail files in filesystem Dovecot will complain and users' IMAP clients
may break. The best you can do is save a new modified message and delete
the old one.