Creating an Inbound Connector for Office 365 to Symantec Cloud IP ranges CIDR

To allow connections only from Symantec Cloud IPs within Office 365 – Exchange Online you will need to create an Inbound Connector that is restricted to Symantec.Cloud IPs (http://images.messagelabs.com/EmailResources/ImplementationGuides/Subnet_IP.pdf ) Note: Office 365 only allows CIDR from 24 to 32 to be entered within the sender IP scope in Send Connectors.  Table 1.1 below are […]