Resources
How it works, and how it treats you.
The guides, the answers and the policies, all in one place. Everything here is a page rather than a promise.
Learn
Questions and answers
Ten things people actually ask: Outlook, file size, spam, tracking, and what happens when images are blocked.
The designs
All ten layouts, each with the motion it was drawn for, playing as a recipient would see them.
Everything it does
The full feature list, grouped by what you are trying to get done.
Installing it
Four clients by two devices, step by step, written inside the app once your signature exists. The mobile guides say plainly where an app can only store plain text, rather than sending you hunting for a setting that is not there.
Gmail
Settings, the signature box, and making it the default for new mail and replies. Desktop, and what the phone app can and cannot hold.
Outlook
New and classic Outlook, plus the one thing worth knowing: Windows shows the first frame only, which is why every animation rests on it.
Apple Mail
The desktop preference pane, and the iPhone, which is the one mobile client that can keep formatting.
Everything else
Anything you can paste formatted text into, including most CRMs. A signature is nested tables with inline styles, which is what email clients have agreed on for twenty years.