A mailto link opens the user’s email client with pre-filled fields. Learn how mailto links work and what to consider for encoding and compatibility.
A mailto link is a hyperlink that starts an email draft in the user’s default email client. It can include a recipient and optional fields like subject, body text, CC, and BCC via URL parameters.
Mailto links are commonly used on websites for contact actions and can reduce friction for users who prefer email. However, behavior can vary depending on the user’s device and mail client configuration.
To use mailto links reliably, ensure parameters are properly URL-encoded and keep the generated link reasonably short. For campaigns where tracking is important, consider a contact form or dedicated landing page instead of relying solely on mailto.