troubleshooting Question

I'm trying to successfully setup DKIM email signing for my Office 365 domain

Avatar of Damian Gardner
Damian Gardner asked on
Microsoft OfficeMicrosoft 365ExchangeEmail ProtocolsEmail Servers
19 Comments1 Solution34 ViewsLast Modified:

Hello - I'm trying to successfully setup DKIM email signing for my Office 365 domain, and may need some help with this.  I'm reading online how to do it, but its left me with a couple questions so far, and thought I'd reach out to the experts.  1st question is when I came to the page on my Tenant account for DKIM (policies&rules\threat policies\DKIM), and clicked on my domain I want to enable on (LACO.COM), it shows a "Rotate Keys" button instead of "Create keys".  Does this mean I've somehow already generated a key on the domain, but its just not enabled?  Following this - if I use the "Rotate Keys" button, will it let me enter a new private key for the domain through the site? or do I need to use the Exchange Powershell to do this?  Other question is - when I went to toggle the switch in there to "ENABLE", it states "Cname records do not exist. Please create cname records first, before enabling DKIM".  So it gave me the correct records to create, and I just added them in my DNS for the domain - the thing I am wondering about is the records Microsoft gave me have the ORIGINAL domain name in them, which was their "", which I changed to a different name for the company, 2 years ago.  Let me explain further.  Our tentnat shows "" for the domain name.  When I click INTO that domain, it then gives me a CNAME record instruction of "Host Name : selector2._domainkey Points to address or value: ".  I don't see "LACO.COM" in there - is that a problem? Will these records not work, since they don't say ""?  Or does that not matter?  

Thanks for your help.


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