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Choosing The Best Email Signature Fonts

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Every element of an email signature’s design is important. However, getting the design right can be difficult. One element that can easily ruin the design of an email signature is the font – not only the style of font you use, but the type of font.

It’s important to be careful with the types of email signature fonts you use. Believe it or not, using certain fonts in an email signature can break it, that’s because some fonts aren’t compatible on all devices and end up reverting to a default font.

What fonts can you use in an email signature?

Web safe fonts

Using a web safe font in an email signature will almost always guarantee the font appears on the recipient’s end as intended. These are also known as "sans serif fonts" as they are commonly used for digital channels. They are easy to read and are not overly decorative.

A web safe font is one that is installed on almost every Windows and Mac device by default. They are available for display on common web browsers like Chrome, Firefox, and Microsoft Edge, as well as common operating systems like Windows, iOS, macOS, and Android.

This means that if you use it in an email signature, it will look the same on the recipient’s end.

Here’s a list of recommended web safe fonts you can use in email signatures:

  • Arial
  • Arial Black
  • Calibri
  • Courier New
  • Georgia
  • Helvetica
  • Lucida
  • Tahoma
  • Times New Roman
  • Trubuchet
  • Verdana

Using custom fonts in email signatures

Web safe font in email signatures

Custom fonts, such as web fonts created specifically for a company, can be used in email signatures. However, as a custom font is most likely not installed on an external recipient’s device, the font may not to show correctly on your email signature.

The same is also true if you decide to use Google Fonts. What will happen instead is that the email signature font text will switch to a fallback font that is actually available on the recipient's side.

It is possible to set the default fallback font to one of your choosing, but you’ll need to have good knowledge of HTML coding.

Other reasons to avoid using custom fonts include:

  • Difficult to read - non web safe fonts will make your email signature template often illegible. If the email signature font makes it too difficult for receipients to actually see the contact information, it can cause real frustration.
  • Negative impact on your brand - email signatures are an online reflection of your business. It directly correlates to the professionalism of your brand. Using messy email signature fonts makes the template difficult to read and will have a negative impact on any recipient.

Email signature font style

Example of bad email signature font

Not only does the type of font you use in an email signature matter. The style of the font does too. This means that your email signature font could damage your brand’s reputation.

Using a garish or wacky font in a corporate email signature, such as in the examples below, is not recommended as this can come across as unprofessional.

Most companies will have brand guidelines, which will outline the type of font you should be using for documents and emails. This will often be a web safe font, such as those listed above.

Choosing the best font size

It is recommended that the email signature font size you use should be between 10px-12px in size. Any larger, the email signature will stand out too much in a recipient's inbox, which simply becomes too distracting.

For more hints and tips on creating a professional email signature, check out the 17 Email Signature DOs and DON’Ts.

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