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The goal for Outlook.com is to offer a comprehensive and usable email service that helps detect and protect users from junk email, fraudulent email threats (phishing) and viruses.

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 …

Please enter a network you are responsible for in one of the following forms: Single IP address: 1.2.3.4 Range: 1.2.3.0 - 1.2.3.255 CIDR: 1.2.3.0/24 ASN: AS123 Please note that IPv6 is not …

If you are an Outlook.com user looking for support with your account, please visit our end user support page. If you are experiencing problems delivering email to Outlook.com please first …

Senders attempting to send email to Outlook.com users should ensure they fully understand and are following the guidance on this page to help in this effort and to help avoid potential …

It is against Outlook.com policy to send mail from a machine which is an open proxy server, and it will be blocked from accessing some or all of Outlook.com servers as long as it remains in that …