*For this entry exists the more relevant or more recent entry MC272450
check before: 2021-02-27
Product:
Exchange, Microsoft 365 admin center
Platform:
Online, World tenant
Status:
Change type:
Admin impact, Updated message, User impact
Details:
Updated April 29, 2021: We have updated the rollout timeline below. Thank you for your patience.
We are updating the way we enforce our receiving limits in Exchange. Starting in May 2021, we will be more strictly enforcing limits across all mailboxes to protect the health of our systems and ensure optimal mail flow performance for all customers.
Mailboxes that receive high message volume in a short time can cause mail flow delays, both for individual recipients and across your organization.
With these changes, emails will be throttled for recipients that exceed our published and established threshold of 3600 messages per hour. While this is not a new limit, it has been a soft limit before – we’ve ensured up to 3600 but in some cases supported higher volume. We are now making this a hard limit.
Change Category:
XXXXXXX ...
Scope:
XXXXXXX ...
Release Phase:
Created:
2021-02-13
updated:
2021-04-30
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Last updated 12 months ago
