- Email addresses that are no longer valid in Dynamics 365;
- Email addresses that are no longer valid and the new contact person in charge of that role.
- Second step is to allow track emails in the folders in Dynamics 365. Go to Dynamics 365 Settings -> System Settings, click on "Use folder-level tracking for Exchange folders (server-side synchronisation must be enabled)"
Then select "Allow messages with unresolved email recipients to be sent" to "Yes" to allow Dynamics 365 send email to invalid address (otherwise when you send email to invalid address in Dynamics 365, there will be a JS error on the form).
Ok, now when you send an email to an invalid address from Dynamics 365, there will be a new email record created in Dynamics 365 to tell you that this email address is invalid, yes, here is the trigger condition for Updating Email Contacts in Dynamics 365 process.
Next we need to know which contact address has been invalid. The email content will contain the invalid address, so we need to split it out with FLOW.
Please refer to this documentation for Splitting out rules between creating or updating records in Dynamics 365