Outlook / Microsoft 365 Send Limit Planner

Estimate safe Outlook/M365 outbound volume and multi-inbox capacity.

How it works

Plan Outlook / Microsoft 365 sending volume

Set inboxes + target → click Plan Outlook limits. Conservative planning model — real throttles depend on tenant reputation.

Or start from a real-life example

Results appear here after you click Plan Outlook limits.

Ready to send with MailShrine?

New accounts get free signup credits. Fix the copy, then send from MailShrine.