Fastmail
Install Fastmail email signatures with a branded, cross-client HTML output—no coding required.
What you get
- • Install Signaturely signatures for your selected email client
- • Personalize your branding with logo, social icons, and styling
- • Export / copy your final signature HTML
Available platforms
More integrations
Explore other email signature integrations.
How to add an email signature in Fastmail
Setting up a professional email signature in Fastmail takes just a few minutes with Signaturely. Build your signature with our free generator — add your logo, social icons, contact details, and brand colors — then copy the ready-made HTML and paste it into Fastmail’s signature settings. The result renders correctly in Browser and stays consistent across every message your team sends.
Because Fastmail handles HTML signatures natively, you don’t need any plugins or technical setup. Everything is embedded in a single block of table-based HTML that survives forwarding, replies, and dark-mode rendering.
Step 1 — Generate
Use the Signaturely generator to design your signature: name, role, logo, social icons, and banner. Live-preview as you type.
Step 2 — Copy HTML
Export or copy the generated HTML with one click. The markup is table-based and email-client safe, ready for Fastmail.
Step 3 — Paste & send
Paste it into Fastmail’s signature settings, save, and send yourself a test email to confirm spacing and images.
Fastmail email signature — FAQ
Is the Fastmail email signature free?
Yes. Signaturely's email signature generator is free to use. Design your signature, export the HTML, and install it in Fastmail yourself — no paid plan required for the generator itself.
Will my Fastmail signature work on mobile and desktop?
Signatures generated with Signaturely are responsive table-based HTML, so they render correctly in Browser and adapt to the width of the reading pane on both desktop and mobile.
Can I include my company logo and social icons in Fastmail?
Absolutely. The generator supports logo uploads, social media icons, banners, custom colors, and fonts — everything is embedded in the HTML you paste into Fastmail.
How long does it take to install a signature in Fastmail?
Most users finish in under 5 minutes: generate the signature, copy the HTML, paste it into Fastmail's signature settings, and send yourself a test message to confirm the formatting.