diff --git a/README.md b/README.md
index 3cd9478..0bc37f1 100644
--- a/README.md
+++ b/README.md
@@ -50,4 +50,8 @@ rspamd can sign outgoing mails with dkim. the following steps are necessary:
 * create private key file at `/var/lib/rspamd/dkim/<domain>.<selector>.key`
   * `chown _rspamd /var/lib/rspamd/dkim/*`
   * `chmod u=r,go= /var/lib/rspamd/dkim/*`
-* create/update selector in `/etc/rspamd/dkim_selectors.map`: `<domain>   <selector>`
\ No newline at end of file
+* create/update selector in `/etc/rspamd/dkim_selectors.map`: `<domain>   <selector>`
+
+
+## spam learning
+To train ham/spam from move actions from/to junk folder, `imap_sieve` needs to be enabled in dovecot.