Not Able to enable DKIM in Office365 - Online Exchange server

I have been trying to enable DKIM on office365 since a couple of days. I have entered all the require CNAME entry in the DNS. But when I try to run the below command via Powershell Ran Powershel...

harveer singh
Aug 22, 2020
Hey Sumesh1980 ,

Okay, Just tested it, it appears you did not run the command :
New-DkimSigningConfig -DomainName <domain> -Enabled $false before updating the CNAME records.

So here are the steps that you need to complete in order to get this working:
1. New-DkimSigningConfig -DomainName <domain> -Enabled $false
2. Get-DkimSigningConfig -Identity <domain> | Format-List Selector1CNAME, Selector2CNAME

Grab the CNAMES and update them in DNS.
Then run the command:
Set-DkimSigningConfig -Identity <domain> -Enabled $true

After running the command in Step 1, it should not give you the domain not found error.

Thanks

harveer singh

Iron Contributor

Aug 22, 2020

Hey Sumesh1980 ,

Okay, Just tested it, it appears you did not run the command :

New-DkimSigningConfig -DomainName <domain> -Enabled $false before updating the CNAME records.

So here are the steps that you need to complete in order to get this working:

1. New-DkimSigningConfig -DomainName <domain> -Enabled $false
2. Get-DkimSigningConfig -Identity <domain> | Format-List Selector1CNAME, Selector2CNAME

Grab the CNAMES and update them in DNS.

Then run the command:

Set-DkimSigningConfig -Identity <domain> -Enabled $true

After running the command in Step 1, it should not give you the domain not found error.

Thanks