Hi all Expert,
I am fresh install and configure Exchange server 2013 to sent to internet domain (Yahoo, Gmail, hot mail, and other email) successfully. But I wonder that my public IP address was block by Spamhaus Blocklist.
My question is how to know my public ip address was blocked by Spamhaus Blocklist?
if it was blocked How can I remove my public ip address from Spamhaus Blocklist?