Cannot set up YANDEX MX record

Greetings, for some reason after migrating to the new member area, I cannot set up my MX record for “mx.yandex.net.”. Whey I go to Set Web Address - Manage - Set MX Record and type the abovementioned MX record, the system says “The domain does not appear to be correct”. How can I make this work, any help is much appreciated.

Mike

Use cloudflare to setup and also enter your MX record, that will work fine