X509 Anchors

As I recall I have to add mail certs to X509 Anchors in the Keychain in order not to be asked every time I connect to a mail server as to whether I accept the certificate or not. But I can't add them to my X509 Anchors. That is, I choose to add them to it, but they only end up in the section "login". I've tried moving them from "login" to X509 Anchors, but they won't. Is something wrong or has something changed?