To authorize SocketLabs to send emails on your domain’s behalf you will have to include it in your SPF record. The SPF record mechanism used by SocketLabs is shown below.
If you would like to use a custom Return-Path address using SocketLabs you can do so by following the instructions below.
To enable DKIM signing for your custom domain please follow the instructions below.
Create a free OnDMARC account to test your configuration.