An HTML email is an email that uses HyperText Markup Language (HTML) to format and style its content. This allows for much more visually appealing and interactive emails compared to plain text emails.
Any email with styling (e.g. bold text, different fonts, colors) is an HTML email. However, most people use the term to describe marketing emails.
HTML emails are usually more engaging than plain text emails. They also offer more customization, which is important for brand identity.
Email marketing tools like Brevo, Mailchimp, Constant Contact, and HubSpot offer drag-and-drop interfaces to create HTML emails without coding knowledge.