Html Email guides and tutorials
7 practical MailSlurp resources
Articles and guides
Email templates for testing and transactional workflows
Create reusable email templates and validate HTML rendering, variables, links, and OTP content. Includes CI-friendly testing patterns with MailSlurp.
Read moretechnicalHow to Preview an HTML Email Before You Send It
Preview an HTML file, saved email or ESP campaign in real mail apps. See an Outlook and Gmail example, fix the layout and check the next version.
Read moretechnicalGmail Email Rendering: Test HTML, Mobile and Dark Mode
Preview delivered HTML emails in Gmail on desktop, Android and iPhone. Check mobile layout, clipping and dark-mode contrast with MailSlurp.
Read moretechnicalHow to Send HTML Email in Gmail and Test It Before Sending
Learn how to send HTML email via Gmail, what Gmail changes in HTML messages, and how MailSlurp helps test rendering, links, headers, and deliverability.
Read moretechnicalHTML Email Spacing: Better Alternatives to Random NBSP Hacks
Learn how to create reliable spacing in HTML email across Outlook, Gmail, and mobile clients using padding, tables, line height, spacers, and QA checks.
Read moretechnicalHow to Create and Send HTML Email with a Plain-Text Alternative
Build matching HTML and plain-text email bodies, send them with MailSlurp, and check the received MIME message with a runnable Node.js example.
Read moretechnicalNBSP Meaning in HTML Emails and Why It Matters
Learn the nbsp meaning, how the non-breaking space character works in HTML emails, and when to use it safely in templates.
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