{"id":11124,"date":"2025-04-22T03:00:53","date_gmt":"2025-04-21T18:00:53","guid":{"rendered":"https:\/\/m365jp.net\/?p=11124"},"modified":"2025-04-22T03:13:09","modified_gmt":"2025-04-21T18:13:09","slug":"mc1023294-updated-new-exchange-online-tenant-outbound-email-limits","status":"publish","type":"post","link":"https:\/\/m365jp.net\/index.php\/2025-04-22-mc1023294-updated-new-exchange-online-tenant-outbound-email-limits","title":{"rendered":"MC1023294 | (Updated) New Exchange Online Tenant Outbound Email Limits"},"content":{"rendered":"
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MC1023294 | (Updated) New Exchange Online Tenant Outbound Email Limits<\/th>\n<\/tr>\n<\/tbody>\n<\/table>\n
\n\n\n\n\n\n\n\n
Classification<\/th>\nplanForChange<\/td>\n<\/tr>\n
Last Updated<\/th>\n04\/21\/2025 17:25:47<\/td>\n<\/tr>\n
Start Time<\/th>\n03\/04\/2025 18:55:51<\/td>\n<\/tr>\n
End Time<\/th>\n07\/31\/2025 07:00:00<\/td>\n<\/tr>\n
Message Content<\/th>\n\n

Updated April 21, 2025: We have updated the timelines below. Thank you for your patience.<\/p>\n

To reduce the risk of misuse and abuse of Exchange Online resources and ensure service availability for all users, we\u2019ll soon introduce new tenant-level outbound email limits, known as the Tenant External Recipient Rate Limit or TERRL. The TERRL restricts the number of external recipients a tenant can send email to per day. If the limit is exceeded further messages sent to external recipients from the tenant will be blocked until the volume for the last 24 hours drops below the quota. A tenant\u2019s TERRL quota is calculated based on the number of email licenses a tenant has purchased. Here is the formula used to calculate a tenant\u2019s quota: <\/p>\n

500 * (Purchased Email Licenses^0.7) + 9500 <\/p>\n

To help admins plan and track their outbound email volume, you\u2019ll find a new report in the Exchange admin center: EAC > Reports > Mail flow > Tenant Outbound External Recipients Rate<\/i>. This report shows the current volume of external recipients, your tenant\u2019s daily quota, how much of the quota is used, and the number of recipients that were blocked if the limit was exceeded. The report will also show if enforcement for the limit is enabled or disabled. For example, for tenants who have more than 500 email licenses it will show \u201cDisabled\u201d until May 1st, the day we\u2019ll start to enable enforcement for tenants who have more than 500 licenses. <\/p>\n

[When this will happen:]<\/p>\n

This change will roll out in progressive stages over the month of March as per the following rollout schedule:<\/p>\n\n\n\n\n\n\n\n
Phase<\/td>\nEnable enforcement for tenant group<\/td>\nRollout start date<\/td>\n<\/tr>\n
1<\/td>\nTenants with <= 25 email licenses<\/td>\nApril 3, 2025<\/td>\n<\/tr>\n
2<\/td>\n+ additional tenants with <= 200 licenses<\/td>\nApril 18, 2025<\/td>\n<\/tr>\n
3<\/td>\n+ additional tenants with <= 500 licenses<\/td>\nApril 28, 2025<\/td>\n<\/tr>\n
4<\/td>\n+ all remaining tenants<\/td>\nMay 9, 2025<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

[How this will affect your organization:]<\/p>\n

If your tenant exceeds its daily outbound sending limit further messages sent to external recipients will be blocked and senders will receive one of the following bounce messages (also known as Non-Delivery Receipts or NDRs): <\/p>\n