Alias email in junk folder

Hi.  My issue:  I created an alias to register at a news site.  At the time of of the alias creation I also asked that all emails for the alias be routed to a separate folder.  Folder was created and (I checked) the rule for sending mail addressed to the alias to be routed to the new folder was created as well.  Said news website sent email to alias for confirmation but the email ended up in the junk mail folder.  Twice. 

I want all email sent to the alias to be put in the alias folder regardless of any other condition.  How can I make that happen?

Thanks, J