Guides
Reference material on email signature design and the rendering quirks of Gmail, Outlook, and Apple Mail.
Why Email HTML Is Still a Nightmare: Reverse-Engineering Dark Mode and Outlook's Word Engine
How we parsed 2,500+ real user complaints, and what each one taught us about building an email signature compiler that stays small.
9 min read20 Professional Email Signature Examples by Industry
What separates a signature that gets ignored from one that builds trust is rarely the color palette — it's whether the right fields are there at all.
9 min readEmail Signature Block Layouts Explained
Before picking colors or fonts, pick a structure. Most signature complaints trace back to the wrong layout for the content it's carrying, not the styling.
7 min read30 Professional Email Closings Beyond 'Best Regards'
The closing line is the last thing a recipient reads before your signature. Matching it to the context matters more than finding a more original phrase.
6 min readEmail Sign-Offs With Personality, Without Undermining Your Signature
A closing line can be memorable and still be professional. The two are not in tension — mismatched tone between the closing and the signature block is what actually reads as unprofessional.
5 min readHow to Write an Email Confidentiality Disclaimer
A disclaimer doesn't make a misdirected email legally private on its own — but it establishes intent, and in some fields, leaving it out is the unusual choice, not including it.
8 min readEmail Signature Size: Dimensions, Byte Limits, and Gmail Fixes
The exact pixel dimensions, byte thresholds, and HTML character limits needed to prevent broken images in Outlook and 'signature too long' errors in Gmail.
8 min readWhy Your Canva Email Signature Isn't Clickable (or Looks Blurry) — And How to Fix It
Understand the technical limits of image-based signatures, why Outlook and Gmail distort raster graphics, and how to build a crisp, multi-link HTML signature for free.
6 min read