Setting up your signature

A signature is the text Thunderbird automatically adds below every new message, for example your name, job title and phone number. In Thunderbird this is simply called the signature. You set it up for each email address.

A plain text signature

1. Click the menu button (three lines, top right) and choose Account Settings.
2. Click your email address on the left. You'll see the page with your name and email address.
3. Type your signature in the Signature text box.
4. Close the tab. Thunderbird saves your changes automatically.

Open a new message to see the result.

A signature with formatting or a logo

Want bold text, a link or a logo? You have two options.

• Use HTML. Tick Use HTML and type your signature as HTML in the box, for example <b>Anne de Vries</b>.
• Use a file. Create your signature in an HTML file and select it with Attach the signature from a file instead (text, HTML, or image) and Choose….

Ideally, put your logo on your website and link to it with a full URL, such as <img src="https://www.jouwdomein.nl/logo.png" alt="Logo">. Use a small file.

Tip: Many recipients only see images after clicking. So always include your key details as text in your signature, not just in an image.

Where does the signature appear?

In Account Settings, below your address, you'll find Composition & Addressing. There you choose whether your reply starts above or below the quoted text, and whether the signature goes below your reply.

The same signature in webmail and on your phone

The signature is only stored in Thunderbird on this computer. You set it up separately in webmail and on your phone. For webmail, see Creating a signature in Webmail. For Thunderbird on Android, see Installing Thunderbird for Android and adding your address.