That is, the command rcpt to:<example@hotmail.com> requests outlook.com's servers to respond with whether it will accept mail for example@hotmail.com, information which is invaluable to spammers trying to compile recipient lists for future spamming. Maintaining a good reputation is a lot of work Outlook.com smart network data services deliverability to outlook.com is based on your reputation
The outlook.com smart network data services (snds) gives you the data you need to understand and improve your reputation at outlook.com
But just looking at the data isn't enough
