Hello I have a Exchange 2010 server and I am having issues with 1 Domain trying to send us emails. I have the Anti Spam rule on and have whitelisted their email address and domain and even their IP of their SMTP server and I still get
Failed 2/27/2017 2:05 PM Exchange Server name here The message couldn't be delivered.
250 2.6.0 <98b9b92f1f784f2bfc09ab169bd52f20@support.officeally.com> Queued mail for delivery
