Can you please have someone update your SPF server IP list? I received a legitimate email from a server that is not listed under the server IPs list. 

99.9% of the emails we receive from [email address removed] are spam/phishing. We get HUNDREDS of these emails daily. We have to block that email address so it's important that we can whitelist your actual email server IPs. 

Someone seriously needs to investigate your SPF/DKIM/DMARC settings.