How to install your HTML email signature in Fastmail

Install your HTML email signature in no time! Follow our simple step-by-step guide to install your email signature in Fastmail.
It's never been easier to create a new email signature for Fastmail. Check out our beautiful email signature templates and easy-to-manage email signature software, that makes creating email signatures for Fastmail a breeze.
Before you start
Before you start
You will need:
- To be logged in to your Fastmail webmail account.
- Your email signature file (.html file) open in your web browser, or be logged into your Email Signature Rescue account in with your email signature open in Full Screen Preview.
Next Step
When you have completed the above steps, click on Install: Step-by-Step Guide below to follow our written installation guide with screenshots.
If you run into any issues during your HTML email signature installation in Fastmail, please see the Troubleshooting FAQ for frequently asked questions before contacting support through your member account.
Install: Step-by-Step Guide
Install: Step-by-Step Guide
1Step One
Log in to your Email Signature Rescue account and click Full Screen to open your email signature in a new tab.
If you don't have an account and have been sent a HTML file, open the supplied file in your web browser.
2Step Two
Press CTRL + A (⌘ + A for Mac) to highlight the signature, then press CTRL + C (⌘ + C for Mac) to copy the signature.
Important: Do not use your mouse to select the area, only use Ctrl + A (⌘ + A for Mac) as you may miss out on grabbing some of the code.
3Step Three
Login to your Fastmail account in your web browser.
4Step Four
Click the Settings Cog icon at the top right of your screen, then select View all settings.
5Step Five
On the left sidebar, select Signatures & Compose. Click Edit on your email account's signature.
6Step Six
Click inside the blank signature field, then press Ctrl + V (⌘ + V for Mac) to Paste your copied signature then click Save.
All done!
Compose a new email and you will see your email signature inserted each time you send an email from that account.
Troubleshooting: FAQ
Troubleshooting: FAQ
If you have tried our instructions for installing your email signature in Fastmail and you run into any issues, please read through this troubleshooting guide before contacting Support for further help.
My email signature doesn't look right when I paste it
More than likely, you have used your mouse to highlight the html email signature file in the browser. Don't use your mouse, only use Ctrl + A (hold the Ctrl button and press A at the same time) to select all of your email signature. If you use your mouse, you may miss out on some of the vital code needed to make your signature work correctly.
I am composing an email and I can't click on any links or social media icons
In compose mode, most email programs won't allow you to use the links in your email signature. Check to see if your email signature has been installed correctly by sending a test email to yourself instead. The links and social media icons should work when you receive the email.
Still experiencing issues?
If you're a member of Email Signature Rescue, you can submit a support ticket to our friendly support team through your member account by pressing the red help button. If you're not a member and need help creating or installing your HTML email signature, consider joining Email Signature Rescue for assistance.
Troubleshooting: Where do I find my email signature HTML file?
Troubleshooting: Where do I find my email signature HTML file?
Finding your email signature HTML file
- If you are an Email Signature Rescue member and are logged into your account, you can download your HTML file directly from your Dashboard, by clicking on the Download button.
- If you have been emailed your HTML file, go to the email and open the file in your web browser.
- If you have your HTML file saved on your computer hard drive, navigate to where you have saved the HTML file and open it.
Troubleshooting: I don't have an email signature HTML file
Troubleshooting: I don't have an email signature HTML file
If you don't have an email signature HTML file, consider joining Email Signature Rescue now and get creating! We offer over 20 professionally designed and tested email signature templates, tools and features to create and manage your email signatures online and a whole lot more.