WhatsApp is attempting to solve its spam problem by putting a curb on how many messages individual users and businesses can send to unknown people without getting a response. While the app started as an easy way to send messages to personal contacts, over time, it has become more complex with groups, communities, and business messaging. With those changes, people are getting more messages than ever, and it is hard to catch up with all of them.
Microsoft is introducing new limits for onmicrosoft.com domains. Organizations can now send a maximum of 100 external emails per day via these standard domains to prevent spam. The new measure limits messages from onmicrosoft.com domains to 100 external recipients within 24 hours. Previously, there were no limits for Microsoft Online Email Routing Address (MOERA) domains. Microsoft is responding to an ongoing issue within Microsoft 365. Spammers are abusing new tenants to send large amounts of unwanted emails before Microsoft can intervene.
Blocking all A2P messages means operators are unable to distinguish between spam and legitimate service texts, affecting vital communications like bank notifications and two-factor authentication.