To authorize OpenSRS to send emails on your behalf you will have to include it in your SPF record. The SPF record mechanisms used by OpenSRS are shown below.
For Cluster A and B:
For notifications sent on behalf of resellers:
For more information on the appropriate SPF record for your domain please click on the button below.
OpenSRS supports DKIM signing for your custom domain. For more information please click on the button below.
Create a free OnDMARC account to test your configuration.