How to create or edit your Outlook signature for email messages. Include your signature, text, images, electronic business card, and logo.

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

Want to add a padlock to your email messages? You can use encryption and digital signatures in new Outlook, classic Outlook, and Outlook on the web for work or school accounts to increase the security of messages. Encrypting an email message in Outlook means it's converted from readable plain text into scrambled cipher text. Only the recipient who has the private key that matches the public ...

Use the Information Protection viewer to view protected files in Windows, Android, iOS, or Edge.

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To capture someone's attention in an email or meeting invite, type the @ symbol followed by their name within the message or invite. Doing so will highlight their name and prompt Outlook to add them to the To line, ensuring they notice, and add the @ symbol next to their message in the Inbox. Select a tab option below for the version of Outlook you're using. What version of Outlook do I have?

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

Use a ready signature template from a gallery to create your email signature in Outlook.

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