Office 365 DKIM CNAME and Linode DNS Manager

Hello, as per instructions on Office 365 (https://docs.microsoft.com/en-us/office365/securitycompliance/use-dkim-to-validate-outbound-email#Publish2CNAME) for adding DNS records for their implementation of DKIM, I am attempting to add a CNAME record with the following text:

Hostname: selector1._domainkey
Points to address or value: selector-1-cohovineyardandwinery-com0i._domainkey.cohovineyardandwinery.onmicrosoft.com

Unfortunately Linode DNS Manager throws an error:

• You have entered an invalid target. It must be a valid hostname.

Has anyone found a way round this issue?

P.S. I know Microsoft is weird in their implementation of DKIM for using CNAME, but it's a corporate requirement that we use Microsoft Office 365 and DKIM. Any help is appreciated.

1 Reply

Feel really embarrassed about this - but the issue was simple - I had a trailing space in my target. Sorry for wasting your time.

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