In email, what is a signature?
A signature is a brief text message about yourself that you can have your mail client add to your email messages. A signature usually consists of your full name, a preferred email address, and brief information about your school, company, site, or occupation.
For help setting up your mail client to add a signature to your messages, see:
- In Microsoft Outlook for Windows, how do I create and use a signature?
- In Outlook Web App, how do I add or edit a signature?
- With a BlackBerry, how do I change my signature?
- In Mozilla Thunderbird, how do I create a signature?
If your mail program is not listed above, consult your program's help files.
It's usually polite to keep your signature as brief as possible. Avoid large pictures, empty lines, and lengthy quotations when composing your signature file.

