Internal tool
Email
signatures
Name
Role
Office phone
Mobile
Email (optional)
Show Red Dot seals
Preview
Copy signature
Copy HTML code
Download .html
Gmail
Click "Copy signature".
Gmail → Settings → See all settings → General → Signature.
Create new, paste, and save at the bottom of the page.
Apple Mail
Open this page in Safari and click "Copy signature".
Mail → Settings → Signatures → +.
Untick "Always match my default message font", then paste.
Outlook
Click "Copy signature".
Settings → Mail → Compose and reply (or Signatures on Mac).
New signature, paste, and set it as default.