AT&T delays Microsoft 365 email delivery due to spam wave
May 9, 2024 at 02:01PM AT&T’s email servers are blocking connections from Microsoft 365 due to a “high volume” spam wave. Customers are unable to receive emails from Microsoft 365 addresses, leading to multiple complaints on AT&T forums. AT&T attributes the issue to spam originating from Microsoft’s servers and is collaborating with Microsoft to address … Read more