External Recipients
The latest External Recipients coverage — news, analysis, and updates from the WindowsNews.AI desk.
Microsoft Slaps 100-Recipient Daily Limit on onmicrosoft.com Outbound Email to Thwart Spammers
Microsoft is pulling the plug on unrestricted outbound email from its shared onmicrosoft.com domains, imposing a hard cap of just 100 external recipients per tenant every 24 hours. The change,...
Microsoft Caps onmicrosoft.com Emails at 100 External Recipients Per Day — Enforcement Starts October 15
Microsoft will begin throttling emails sent from the default onmicrosoft.com domain to just 100 external recipients per day, starting with trial tenants on October 15, 2025. The limit is a hard cap...
Microsoft to Slash onmicrosoft.com Outbound Email to 100 External Recipients per Day — Staged Rollout Begins October 2025
Microsoft will soon enforce a hard limit on external email sent from the shared onmicrosoft.com namespace, capping it at just 100 external recipients per tenant per day. The policy, dubbed MOERA...
Microsoft Slashes onmicrosoft.com Outbound Email to 100 Recipients Daily to Fight Spam
Starting October 15, 2025, Microsoft will begin enforcing a hard cap of 100 external email recipients per 24 hours for all tenants sending from the default onmicrosoft.com domain. The move, announced...