I use Office 365 to host my companies mail server, the DNS of which is controlled by CloudFlare. I am currently trying to add DKIM (DomainKeys Identified Mail) authentication to my outgoing mail.
The way to do this (according to Microsoft) is to add 2 CNAME records to your DNS record (removed company name for confidentiality):
NAME: | VALUE:
Host name: selector1._domainkey.companyname.com
Points to address or value: selector1-companyname-com._domainkey.companyname.onmicrosoft.com
Host name: selector2._domainkey.companyname.com
Points to address or value: selector2-companyname-com._domainkey.companyname.onmicrosoft.com
I did this about 2 days ago, however for some reason I am still not able to enable DKIM authentication in the Office 365 Exhange Admin portal, which throws the error message that the CNAME records can’t be found.
I opened up a ticket with Microsoft who couldn’t resolve my issue, and suggested that I asked you guys instead. So here I am!
Does anyone have any experience with setting up DKIM authentication behind CloudFlare? If so, did you face these same issues?
All help is greatly appreciated!