Emails from popular Blog going to Junk Mail--cannot retrain

I belong to a forum called The Hull Truth and am subscribed to many threads where I am signed up to receive emails from responses to the thread.

About a month ago I noticed every single email goes to the junk folder. I have moved them back to my inbox to no avail. I have added the email addressed to my address book om my iMac:

Still every single email goes to junk.

I tried setting up a smart mailbox with all emails using the above email address to it but it worked only once.

Any other suggestions to fix? Could it be that my iPhone or my iPad or moving them into junk as opposed to the Mac?

[Edited by Moderator]