What is DKIM and can I send emails using it?

DKIM (short for DomainKeys Identified Mail) is an email validation system designed to detect email spoofing. A digital signature is included with the message, and is validated by the recipient by using the signer’s public key published in the DNS. With DKIM, any emails sent through are reviewed by the receiving mail exchange and are marked as not being spam.  Many of the large email providers, such as Yahoo and Gmail, use DKIM to validate their emails.

If you are using our email service, the following DKIM CNAME records are required: 

Name                                                             Value
soverin1._domainkey                  soverin1._domainkey.extendcp.co.uk.
soverin2._domainkey                  soverin2._domainkey.extendcp.co.uk.
soverin3._domainkey                  soverin3._domainkey.extendcp.co.uk.

We also support DKIM records in CNAME and TXT format from other providers.

To prevent spoofing, we also offer SPF TXT records. You can read more in the following article:
How do I add SPF records to my site?