Hello @adv_kd,
Thank you for posting your query on Microsoft Q&A.
Based on the information provided, the behavior you experienced is expected. When using Privileged Identity Management (PIM) and your admin role is not active, you won't receive alerts when a quarantined message is released. This is because alerts configured to be sent to the "TenantAdmins" group only include active members of that role.
Currently, there is no way to send emails to admins who have not activated their roles at the time a quarantined message is released. To address this, you can create a new group, add the required users as members, and update the alert policies to include this new group as recipients of the alerts. This way, the members of the group will receive email notifications when a quarantined message is released.
I hope this information is helpful. Please feel free to reach out if you have any further questions.
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Thanks,
Raja Pothuraju.