Open your HTML email signature file in your web browser.
Press Cmd + A to select the entire email signature, then press Cmd + C to copy it.
IMPORTANT: Do not use your mouse to select the area, only use Cmd + A as you may miss out on grabbing some of the code.
Open Airmail and from the menu bar select Airmail then Preferences. Select the Signatures tab at the top of the window.
Now that you're in Preferences, you should have a new window open and by default be on the Accounts tab. To the far right of your listed email account you will see a small settings cog icon, click this.
A new window will open up and you will see a few new tabs across the top, select the Signature tab. Select your email account, then click the + icon to enter a name for your signature.
Click inside the blank text box below and press Cmd + V to paste your copied email signature. Click Save.
Your email signature is now installed in Airmail for macOS and will insert when composing an email.
Open your HTML email signature in your iOS device's browser app.
Tap and hold your finger down on the text in your email signature and you will see a tooltip appear. Tap Select All, then select Copy.
NOTE: If the tooltip does not show, you can drag the highlighted area above and below to grab the full email signature.
Open your Airmail App on your iOS device. Select the menu icon at the top left of the app, then select Settings at the bottom left.
Tap the email account you want to install your email signature into, then select Signatures.
You will now see a blank signature text field to add your email signature into. If there is any text in here, delete it. Once empty, tap and hold inside the field, then press Paste.
Your email signature is now installed and will automatically appear when composing emails from the Airmail iOS App.
Show an animated gif that shows where the key value is in our app, it could zoom in from the full page view to where the key button is, show it being pressed, revealing the key and then showing the key value being copied.
