recipient rate limit

The recipient rate limit tag covers discussions about Microsoft Exchange Online's Mailbox External Recipient Rate Limit (MERRL), which was canceled indefinitely after customer feedback. Instead of a fixed per-mailbox cap, Microsoft plans to implement smarter, more adaptive outbound protections. Administrators and IT professionals share insights on how this change affects email delivery, spam controls, and compliance. Topics include the impact on bulk mailers, configuration adjustments, and monitoring outbound limits. The tag is relevant for Exchange Online admins managing recipient rate restrictions and staying updated on Microsoft's evolving anti-abuse policies.