Hi @Ruiz Nelli ，
Question: Is there upcoming feature in Azure AD to send automatic email notification to generic mailbox owner/user that their pki cert is about to expire e.g. 15 days before expiry?
As far as I know, currently it's still not feasible and I haven't seen official statement about any new or upcoming features for this scenario. Given this, I'd recommend leaving your feedback for this feature here: https://feedback.azure.com/
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