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postmaster.hotmail.com

SNDS - FAQ - postmaster.hotmail.com

That is, the command "RCPT TO:" requests Outlook.com's servers to respond with whether it will accept mail for [email protected], information which is invaluable to spammers trying to compile recipient lists for fut...

postmaster.hotmail.com

Smart Network Data Services - postmaster.hotmail.com

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 reputati...