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.
If you are signed in as an Administrator for the account, you can view the IP addresses used in the delivery of your mail in the Control Panel of your server. To do so, select the Configuration dropdown from the menu bar, and choose Sending IP Addresses from the list.
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.