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
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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
