Why does my logo appear fuzzy or blurry?

Logos can look fuzzy or oversized because many email clients double the size of images when your signature is pulled into a reply. Mirosign uses a logo around 160 pixels wide so it stays clean and consistent on every device and in reply chains, rather than appearing blurry or huge on high-resolution screens.

When you reply to an email, your recipient’s signature is often copied into the reply chain. The problem: many email clients double the size of images in replies. This can make logos originally designed for a smaller size appear blurry, or even gigantic, on high-resolution screens.

Why we recommend smaller logos for your email signature

We prioritise a consistent, professional look across all devices. Imagine someone receiving your reply on their phone — a massive, pixelated logo could be off-putting. By using a smaller logo from the start (around 160 pixels wide), we ensure it displays correctly regardless of the recipient’s device or email client, even if it means sacrificing some crispness on retina displays.

In short:

  • Smaller logos (around 160px wide) ensure consistent display across all devices and email clients.
  • Larger logos can appear blurry or gigantic in replies, especially on high-resolution screens.
  • We prioritise a professional look for your emails across all platforms.

Craving a fully crisp logo? While our generator works best with smaller logos, if you need a sharper, high-resolution version, write to our support team. We can manually add a high-resolution logo, but be aware it may double in size when recipients reply to your emails. The choice is yours: consistency, or maximum crispness with a potential size increase.

Any further questions?

If you’re still having issues using Mirosign or we haven’t answered your question here, please get in touch and we can help you in person.

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