Mail.Yandex is biggest russian free mail service support https. with simple rule like <ruleset name="Mail.Yandex"> <target host="mail.yandex.ru" /> <rule from="^http://mail\.yandex\.ru/" to="https://mail.yandex.ru/"/> </ruleset> addons correctly redirect user to https-version of web-mail sorry for my English -- wbr Ergil Osin