event for "copy message"

[Dmitriy Kirhlarov]

Hi, list.

I would like to make easy user interface for train anti-spam filter.

Idea is simple -- user have INBOX and INBOX/spam.

Sieve read dspam header from message and move it to INBOX/spam, if needed.
User also can move message to or from INBOX/spam.
I need any notification mechanism for this occurrence.

But sieve work only for "post", not for "copy" event,
log also doesn't have any information about message moving.

Any hints?

WBR
Dmitriy