Important: Steps may be different between new and classic Outlook for Windows. To determine which version of Outlook you're using, look for File on the ribbon.If there's no File option, follow the steps under the New Outlook tab. If the File option appears, select the tab for Classic Outlook.

Use the Block or Allow settings to help control unwanted and unsolicited email messages by creating and managing lists of email addresses and domains that you trust and those that you don’t.

About digital signatures and certificates in Office, and buying a digital certificate from a certificate authority or create your own.

Select the Video button to add video to a Skype for Business call.. Select the IM button to add instant messaging to a Skype for Business call.. Select the Participants button to invite other contacts to join the call.. Use the Dial pad. If your Skype for Business account is enabled for Enterprise Voice, you can use the dial pad to call a phone number from Skype for Business.

Tips: While signing in, select Yes at the "Stay signed in?" prompt if you want to go straight to your mailbox next time (not recommended for shared computers). Alternatively, check the "Don't show this again" box and select No to be prompted for your password each time.. If you can't sign in, or have forgotten your username or password, use our sign-in troubleshooter.

Sign in to a work/school account using a remote computer. Many apps allow you to authenticate by entering a code on another device such as a PC.

The security info that you replaced will be deleted in 30 days. During that time, we'll send notifications to the phone number or email address that's being removed, in case an attacker is attempting to remove your info.

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Microsoft support is here to help you with Microsoft products. Find how-to articles, videos, and training for Microsoft Copilot, Microsoft 365, Windows, Surface, and more.

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