Field notes from the signature trenches.
Design opinions, render-engine quirks, install gotchas, and the occasional customer war story. Written by the team that ships your signature.
The 5 design rules every email signature should follow in 2026
Stop using stretched logos and 12-pt Comic Sans. Here's the short list of rules our designers apply to every signature we ship.
Why your signature breaks in Outlook (and what we do about it)
Outlook still uses Microsoft Word as its rendering engine. We explain what that means and the techniques we use to ship signatures that survive it.
Your email signature is part of your brand. Treat it like one.
Brand identity stops at the homepage for most teams. Then the sales rep sends an email with a signature in Times New Roman 12. Here's why that matters.
Adding a UTM-tagged signature link took our cold-email reply rate from 4% to 11%
A small experiment from one of our customers. We rebuilt the signature, added one tracked CTA, and kept everything else the same. The numbers spoke.
How a 25-person agency rolled out new signatures in a single afternoon
A walkthrough of our Brand Kit delivery — from the initial brief to 25 signed-off, installed signatures across the whole team.
Dark mode signatures: the 4 mistakes we see most
Most signatures look fine on a white background and fall apart on a dark one. We pulled together the 4 things to fix to ship dark-mode-safe signatures.
Apple Mail is quietly the strictest email client. Here's why we love it.
Apple Mail isn't quirky — it's actually the most standards-compliant. If your signature looks great in Apple Mail, your CSS is probably correct.
How to install your signature in Gmail (and the 3 mistakes to avoid)
We've watched dozens of customers install their signatures. Three mistakes come up over and over — here's what they are and how to skip them.