01/06/2026 Important update regarding the cloud hosted Mailbox External Recipient Rate Limit: The implementation of this limit has now been CANCELLED and will not go into effect. This blog post is le...
Updated Jan 06, 2026
Version 15.0
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Hi The_Exchange_Team​ / IanMcDonald​,
I hope you are well. I just had a couple of questions on this topic i'm hoping you can clarify please:
- Is the EAC report still planned for release in April 2026 with enforcement 6 months later?
- This gives very little time for admins to plan alternatives for entries in the report, particularly for larger tenants.
- Are you able to clarify if the limit applies to the From address or the authenticating account?
For example, if multiple cloud accounts have Send As permissions to a generic/shared mailbox address, will each account have its own 2K limit or will this be imposed on the From/shared mailbox/address?
Thanks in advance.