Hi
My main domain does not have standard office365 DKIM records in place.
I am going to add these and then sign them via the office 365 portal
The following DKIM records will be added to our external DNS
selector1._domainkey CNAME selector1-ourdomain-co-uk._domainkey.ourmaintenant.onmicrosoft.com
selector2._domainkey CNAME selector2- ourdomain-co-uk._domainkey.ourmaintenant.onmicrosoft.com
My question is would this have any negative impact on our mail flow? Or is this purely a security thing that is required to stop spoofing etc from our domain?