You will need to create an Azure Sentinel playbook or come up with another method of automation through Office 365 that facilitates purging of emails reported to a Microsoft teams channel as Phishing.
Currently, staff click on report phishing in outlook. This sends a notification to a teams channel with details of the message, including a copy of the email.
Your task is to include the option for cyber security staff to:
1. Report on the number of recipients
2. Extract the subject and IP of the sender
3. Allow cyber security staff to click a button to automatically purge these emails from Office 365 mailboxes