Add DKIM signing to Calendar messages sent from Outlook
Calendar messages sent from Outlook are not DKIM signed, thus it is not possible to follow step 3 in the "Best practices for implementing DMARC in Office 365" found here:
By Calendar messages I'm referring to Invite responses and Meeting requests.
This is resulting in emails failing to be delivered due to our DMARC policy for the receiving email servers that are paying attention to DMARC, such as GSuite.
I have had a thread with support in regards to this and it was suggested I posted here:
"I have had a look and am not sure why Calendar invite emails are not signed using DKIM. It is a feature that could potentially be implemented. If you would like, you can request the feature to be added here: https://office365.uservoice.com/"