What is a DKIM record?
A DKIM record is actually a specific type of TXT record to verify that the messages’ content are trustworthy, meaning that they weren’t changed from the moment the message left the initial mail server.
How do I setup a DKIM record?
Setting up a DKIM record at your domain registrar/DNS provider (for your domain name) is a very simple process that can be done in under a minute!
DKIM is unique to each domain.
General Instructions:
Host / Name: default._domainkey
TXT value: v=DKIM1; k=rsa; p=MIGfM...long hash...DAQAB
(Use your own key from your Chillimail DKIM panel!)
Record type: TXT
TTL: 1800
(in seconds)
To check for propagation (after adding the records) you can use
https://www.whatsmydns.net/#TXT/default._domainkey.yourdomain.com