If I whitelist an email or domain will RBL still block it? SecPoint Support March 15, 2018 18:23 Updated Follow No RBL wont touch it. If the email of the user or entire domain is in the whitelist it wont get triggered by RBL. Related articles I am getting Memory Errors in the ESXi Virtual Protector Can the Protector UTM Firewall block SCADA attacks? Comments 0 comments Please sign in to leave a comment.