Block Incoming OnMicrosoft.com Domains Due To Spam
Unfortunately waves of spam from various onmicrosoft.com domains are a thing. The volume waxes and wanes over time, but this was an annoyance many years ago and remains so even today. Given that any meaningful organisation on the Internet will have their own brand and identity, it is highly unlikey that legitimate email from customers and partners will originate from an onmicrosoft.com address. … Read the rest “Block Incoming OnMicrosoft.com Domains Due To Spam”