Pasted images break
When you paste an image into a signature, it's often embedded as an attachment or inline data that many clients block, strip, or show as a broken icon.
Hosted images are reliable
A hosted image lives at a public URL and is referenced with <img src>. Clients fetch it like any web image, so it displays consistently and doesn't bloat the message.
Create a professional email signature in minutes
Use KeyStamp's AI Signature Studio to generate, customize, preview, and export email-safe signatures for your team.
Set dimensions and alt text
- Always include width and height to prevent layout shift
- Add descriptive alt text for accessibility and blocked-image fallback
- Keep files optimized and small
Use secure, stable URLs
Host on a reliable service with stable, unguessable URLs so images don't disappear or change unexpectedly.
How KeyStamp helps
KeyStamp is an AI-powered email signature creator. Describe what you need and it generates a professional, email-safe signature you can refine visually — then manage branding, templates, and employee details from one place and export clean HTML that renders everywhere.
Frequently asked questions
Why does my logo show as a broken icon?
Do hosted images affect deliverability?
Does KeyStamp host signature images?
Ready to build better email signatures?
Start with KeyStamp and create professional, brand-consistent email signatures using AI-powered templates.