[Dovecot] How to create .dovecot.sieve through IMAP?

Hi All,

I suspect that the answer is "no way," but there's hope. I'm trying to set up a PHP application Ingo (part of Horde suite) to create the file <home>/.dovecot.sieve for the "advanced" LDA to do mail sorting. Because PHP is running under a Web server user, Ingo can't really write this file directly. My question is, is there any way for Ingo (or any other tool, for that matter) to create that file via IMAP protocol interaction? Horde authenticates users and "knows" login/password combination (that's how it accesses mail folders). Thank you!

Sergey.