A phishing email is an email that appears legitimate but is actually an attempt to get your personal information or steal your money. Some deceptive emails appear to be from a safe sender but, in fact, have a "spoofed" source address to fool you. Here are some ways to deal with phishing and spoofing scams in Outlook.com. Spoof intelligence in Exchange Online Protection helps prevent phishing ...

Send S/MIME or Microsoft Purview encrypted emails in Outlook using a work or school account with a qualified Microsoft 365 subscription.

Contact Microsoft Support. Find solutions to common problems, or get help from a support agent.

Learn how to identify and open encrypted and protected emails no matter what email client you're using.

Learn how to use encryption and other security settings to protect messages sent from Outlook.

Learn more about how you can set filters and adjust your safety settings for Xbox messaging.

請依照此頁面上的步驟變更Microsoft帳戶電子郵件地址或電話號碼， (也稱為您用來登入的帳戶別名或用戶名稱) 。

If you need to update your email account settings or set up your email account in Outlook manually, use the following steps.

Signing your email messages with a digital ID helps to prove your identity and prevent message tampering.

These steps are the same whether you're adding your first iCloud email account or additional iCloud accounts to Outlook. Select a tab option below for the version of Outlook you're using. What version of Outlook do I have?