Email signature setup guides
Your signature is made once and pasted into each email app you use. Pick yours for the exact steps on the web, on a computer and on your phone.
Checked against each client’s help pages on September 24, 2026.
How to add an email signature in Gmail
Gmail on the web · Changing it later · The Gmail app on Android and iPhone
How to add an email signature in Outlook
New Outlook and Outlook on the web · Classic Outlook for Windows · Outlook for Mac · The Outlook app on iPhone and Android
How to add an email signature in Apple Mail
Mail on your Mac · Mail on iPhone and iPad · iCloud Mail on the web
How to create an email signature with ChatGPT
Design it by asking, with esigna in ChatGPT, then paste it into any of the email apps above. The video runs 4:29.
Change a signature you already have
How to change your email signature in Outlook
Edit it, choose a new default, or replace it with a new one, on every version of Outlook.
How to change your email signature in Gmail
Edit it, choose a new default, or replace it with a new one, on every version of Gmail.
Before you start
Copy your signature first
Make it in esigna’s free Editor and choose Copy signature (on a template page, Copy HTML). That puts the finished design on your clipboard as formatted text, so every step in these guides is a normal paste, with no code to handle.
Rather ask than click? Make your signature in ChatGPT.