{"id":17870,"date":"2026-08-14T10:02:09","date_gmt":"2026-08-14T01:02:09","guid":{"rendered":"https:\/\/m365jp.net\/?p=17870"},"modified":"2026-08-14T10:02:50","modified_gmt":"2026-08-14T01:02:50","slug":"mc1454397-updates-to-tenant-external-recipient-rate-limit-terrl-quotas-for-new-trial-and-education-tenants","status":"publish","type":"post","link":"https:\/\/m365jp.net\/index.php\/2026-08-14-mc1454397-updates-to-tenant-external-recipient-rate-limit-terrl-quotas-for-new-trial-and-education-tenants","title":{"rendered":"MC1454397 | Updates to Tenant External Recipient Rate Limit (TERRL) Quotas for New, Trial, and Education Tenants"},"content":{"rendered":"<div class=\"postie-post\">\n<div>\n<hr>\n<table id=\"section\">\n<tbody>\n<tr>\n<th width=\"95%\">MC1454397 | Updates to Tenant External Recipient Rate Limit (TERRL) Quotas for New, Trial, and Education Tenants<\/th>\n<\/tr>\n<\/tbody>\n<\/table>\n<hr>\n<table id=\"data\">\n<tbody>\n<tr>\n<th>Classification<\/th>\n<td>stayInformed<\/td>\n<\/tr>\n<tr>\n<th>Last Updated<\/th>\n<td>08\/14\/2026 00:09:48<\/td>\n<\/tr>\n<tr>\n<th>Start Time<\/th>\n<td>08\/14\/2026 00:09:35<\/td>\n<\/tr>\n<tr>\n<th>End Time<\/th>\n<td>11\/14\/2026 08:00:00<\/td>\n<\/tr>\n<tr>\n<th>Message Content<\/th>\n<td>\n<p><b>[What and Why:]<\/b><\/p>\n<p>  To strengthen protection against abuse and ensure fair use of Exchange Online resources, we are updating how the  <b>Tenant External Recipient Rate Limit (TERRL)<\/b> quota is calculated for certain tenants.<\/p>\n<p>These changes improve how quotas account for tenant age (how long the tenant has existed since creation), trial subscriptions, and educational organizations using free Education (EDU) licenses.<\/p>\n<p><b>[Rollout Schedule:]<\/b><\/p>\n<ul>\n<li>  General Availability (Worldwide): Rolling out beginning <b>mid-September 2026<\/b><\/li>\n<\/ul>\n<p><b>[Impact on Your Organization:]<\/b><\/p>\n<p>  <\/p>\n<p><b>Who is affected:<\/b><\/p>\n<p>  <\/p>\n<ul>  <\/p>\n<li>Newly created tenants (first 60 days)<\/li>\n<p>  <\/p>\n<li>Trial tenants<\/li>\n<p>  <\/p>\n<li>Educational organizations with free EDU licenses<\/li>\n<p>  <\/ul>\n<p><b>Platforms\/Services:<\/b><\/p>\n<p>  <\/p>\n<ul>  <\/p>\n<li>Exchange Online<\/li>\n<p>  <\/p>\n<li>Exchange admin center (EAC)<\/li>\n<p>  <\/ul>\n<p><b>What will happen:<\/b><\/p>\n<p>  <\/p>\n<ul>  <\/ul>\n<p>TERRL quota calculations will change based on tenant status and licensing.<\/p>\n<ul>\n<li><b>New tenant quotas (based on tenant age):<\/b>\n<ul>  <\/p>\n<li>Less than 31 days: 10% of standard calculated quota<\/li>\n<li>31\u201360 days: 25% of standard calculated quota<\/li>\n<li>More than 60 days: 100% of standard calculated quota<\/li>\n<\/ul>\n<\/li>\n<li><b>Trial tenants:<\/b><\/li>\n<ul>\n<li>Daily TERRL quota reduced from <b>5,000 <\/b>to <b>500 <\/b>external recipients<\/li>\n<\/ul>\n<li><b>Tenants with free EDU licenses (e.g. A1 licenses):<\/b><\/li>\n<ul>\n<li>New formula applied: 500 \u00d7 (Purchased Email Licenses^0.7 + Free EDU Licenses^0.3) + 9500<\/li>\n<li>Free EDU licenses contribute to the quota at a lower weighting than purchased licenses<\/li>\n<\/ul>\n<li><b>Tenants without free EDU licenses:<\/b>\n<ul>\n<li>Existing formula remains unchanged: 500 \u00d7 (Purchased Email Licenses^0.7) + 9500<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>If a tenant exceeds its quota:<\/p>\n<\/p>\n<ul>\n<li>Additional outbound messages to external recipients will be blocked until usage falls below the rolling 24-hour limit<\/li>\n<li>Senders will receive one of the following Non-Delivery Reports (NDRs):<\/li>\n<ul>\n<li><b>Trial tenants:<\/b> 550 5.7.232 \u2014 Message blocked due to trial tenant external recipient limit<\/li>\n<li><b>Non-trial tenants:<\/b> 550 5.7.233 \u2014 Message blocked due to tenant external recipient limit<\/li>\n<\/ul>\n<\/ul>\n<p><b>[Action Required \/ Recommendations:]<\/b><\/p>\n<p>  <\/p>\n<ul>  <\/ul>\n<p>No immediate action is required.<\/p>\n<p>Recommended actions:<\/p>\n<ul>\n<ul>  <\/ul>\n<li>Review the <b>Tenant Outbound External Recipients Rate <\/b>report in the Exchange admin center:&nbsp;<b>EAC &gt; Reports &gt; Mail flow &gt; Tenant Outbound External Recipients Rate.<\/b><\/li>\n<li>Monitor:\n<ul>\n<li>Current TERRL quota<\/li>\n<li>Outbound recipient volume<\/li>\n<li>Percentage of quota consumed<\/li>\n<li>Blocked recipients (if any)<\/li>\n<li>TERRL enforcement status<\/li>\n<\/ul>\n<\/li>\n<li>If your organization regularly operates near or above quota consider migrating high-volume, application-driven outbound email to a third-party bulk email service or purchasing more licenses to cover your volume needs.<\/li>\n<\/ul>\n<p>Learn more: <a href=\"https:\/\/techcommunity.microsoft.com\/blog\/exchange\/introducing-exchange-online-tenant-outbound-email-limits\/4372797\" target=\"_blank\">  Introducing Exchange Online Tenant Outbound Email Limits<\/a><\/p>\n<p><b>[Compliance considerations:]<\/b><\/p>\n<p>  No compliance considerations identified, review as appropriate for your organization.<\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table><\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>MC1454397 | Updates to Tenant External Recipient Rate Limit (TERRL) Quotas for New, Trial, and Education Tenan [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-17870","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"_links":{"self":[{"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/posts\/17870","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/comments?post=17870"}],"version-history":[{"count":0,"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/posts\/17870\/revisions"}],"wp:attachment":[{"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/media?parent=17870"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/categories?post=17870"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/m365jp.net\/index.php\/wp-json\/wp\/v2\/tags?post=17870"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}