This site provides information to information technology professionals who administer systems that send email to and receive email from Outlook.com. It also provides some information about how users with Outlook.com accounts can report junk email and phishing attempts. However, it is not intended to provide extensive support to Outlook.com users. If you are an Outlook.com user in need of support, please visit .

• A starting point for any questions related to delivering communications to Outlook.com users
• Includes a simple online guide with our policies and requirements
• An overview of the junk email filters and authentication technologies employed by Microsoft