Hostinger’s default DKIM records are:
By default, if your domain is pointed to Hostinger by nameservers, it already has DKIM CNAME records.
If for some reason you can't find your DKIM records, you can add them by navigating to Emails → domain name → Email Delivery:
And click on Set all to default (if you want MX, SPF, and DKIM records to be correct):
Or only Set default in front of DKIM (to set only DKIM record):
If your domain is pointing elsewhere by nameservers (and you want it to stay that way), you will need to create CNAME records on that service’s side with the values from the table above.
Please give it up to 24 hours to propagate fully, and you will be good to go! 😊