DKIM setup

Instructions:

• Go to Cpanel account of mail server.
• Choose Email Deliverability.
• Choose "Manage" for the domain you want.
• Create DKIM record if not already there.
• Use the "Name" and "Value" values to create a new DNS TXT record. TTL 3600 is enough. You may need to enable the "Split" view of the value in Cpanel before copying it.

Note: you might need to check the "SPLIT" instead of the "FULL" option to pass the value to certain DNS providers like Amazon Route53.