The following is a list of IP address ranges in CIDR notation that may be used by SocketLabs to deliver messages for our customers using the SocketLabs On-Demand platform.
This list was last updated on 7/20/2018. This list is subject to change.
For information about the specific IP addresses used for the delivery of mail through your SocketLabs On-Demand Server please contact firstname.lastname@example.org. For information about how to authenticate SocketLabs' IP addresses in your domains SPF record please see our article on Sender Policy Framework (SPF) with SocketLabs.