What’s the most important design rule for email signatures?

Prioritize skim-readability. Use a clear hierarchy (name, title, contact) and keep spacing consistent so the signature doesn’t feel cluttered.

How do I prevent signatures from looking too tall?

Limit the number of stacked elements and keep font sizes modest. Use a small logo and compact line-height; test in Gmail and Outlook.

Do icons need borders or background shapes?

Usually not. Keep icons simple, consistent, and small. Avoid fancy hover effects that don’t reliably render across clients.

What layout works best for most teams?

A classic two-column feel (logo/name on one side, contact on the other) or a compact single-column design with a consistent contact block.

Email Signature Design Tips (Gmail + Outlook)

Design your signature for humans first—and for email clients second. Use these tips to improve readability, maintain brand consistency, and reduce Gmail/Outlook rendering issues.

1) Build hierarchy that scans

Name should be the most prominent.
Title/company comes next (slightly smaller).
Contact lines should be compact and aligned.
Secondary info (tags, social) should be subtle.

2) Keep spacing consistent

Use modest vertical spacing between sections.
Avoid stacking too many elements vertically.
Keep line-height readable but not oversized.

3) Typography + icons that survive clients

Prefer email-safe font stacks.
Use small icon sizes and consistent spacing.
Avoid complex CSS, large shadows, or animations.

Create a client-friendly design

Generate a signature Read size guide

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