What are email-safe fonts and web fonts?
The best fonts to use for email marketing content are those that are email-safe. This means that they will display correctly on any device and in any email client in nearly all cases.
While it may be tempting to use unique or special fonts to make your content stand out, doing so can actually backfire. If a font isn’t supported by an email client, the client may replace it with a different font that can change the look and feel of your email, or make it difficult to read. To avoid this, stick to safe fonts that are widely supported.
Some common sans serif fonts that can be used for mailings are Arial, Arial Black, Tahoma, Verdana, and Trebuchet MS. Common serif fonts are Georgia, Times New Roman, Courier New, MS Sans Serif.