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signatures for almost any email client.

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email signature rescue

What size should my email signature be?


Is size and width important when it comes to designing an email signature?

Much like HTML emails, email signatures need to be designed to suit different screen sizes and widths, from desktop to mobile.

Because email clients can only ever send one version of the HTML code, unfortunately, including viewport or css styling to adjust the email signature's size on receipt of the email, depending on screen size, like modern browsers do, still simply won't work in a majority of modern email clients.


Just like HTML emails, email signatures must be designed using older principles of design like tables and inline css. You can't use divs and newer design techniques because, well, email clients just don't listen to them.

Our recommendation for size of email signatures

A good size and width to aim for when designing your email signature is approximately:

  • 480 pixels wide
  • however high you like

Keeping your email signature within these sizes, will suit most screens sizes from an iPhone X to a Samsung Galaxy, all the way up to larger desktop screens.

Over 100,000 email signatures created with Email Signature Rescue
  • logo century21
  • logo culturetrip
  • logo dudeperfect
  • logo experiencekissimmee
  • logo kw
  • logo mcafee
  • logo remax
  • logo seattleu
  • logo ucdavis
  • logo umg

No Design Skills

No design skills required. Your signatures will look as beautiful as our examples. 20 easy to customize templates included.

No Tech Knowledge

Whether you’re a solo business owner, hairdresser, real estate agent or dog walker, anyone can create and install a signature!

Works With

Install in nearly all major email clients including Gmail, Apple Mail, Outlook, iOS and more. 50+ email clients, apps and software supported.

Reliable & Tested

We refine our HTML code and conduct extensive testing regularly to ensure it is industry-leading and works across all major email clients.

Save Time

Create, customize, edit, manage and deploy HTML email signatures from one central, easy to use system.

Save Money

No expensive IT staff, developers or designers needed. From signature design, to installation and support, we take care of it all.

Easy Duplication

10, 20, 30 or 100 staff? No worries! Duplicate signatures you’ve already created from the Dashboard to create multiple signatures quickly.

Support if you need it

Hit a snag? Help is only an email away. We're here for help with any design, installation and technical issues, should you need us.

Everything you need to create, customize, manage and deploy HTML email signatures.

Email Signature Software for Businesses and Designers.

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