MailSlurp guide agent setup

Title: Mailto Link Use in HTML: Syntax, Encoding, and Real-World Limits
Description: Build reliable mailto links in HTML with proper URL encoding, subject/body parameters, and fallback patterns when clients are unavailable.
Canonical URL: https://www.mailslurp.com/guides/mailto-link-use-in-html/
Markdown URL: https://www.mailslurp.com/guides/mailto-link-use-in-html.md

Use the Markdown URL as the primary plain-text context for this guide. Keep MailSlurp terminology, setup steps, screenshots, and provider-specific instructions intact, and prefer the canonical URL when citing this page.