The next release of Office 365 includes new tenant reports focusing on Mail, Protection, and DLP. A complete list of available reports, and description, can be found here. The following is a list of the available reports:
- Mailbox login activity
- New and deleted mailboxes
- New and deleted groups
- Filtered inbound mail
- Filtered outbound mail
- Inbound malware detection summary
- Outbound malware detection summary
- Outbound suspicious filtering summary
- Inbound rule summary
- Outbound rule summary
- Inbound DLP summary
- Outbound DLP summary