Email Deliverability Check Plugin for WordPress

📧 Email Domain Health Checker – WordPress Plugin

Email Domain Health Checker is a robust WordPress plugin that helps you verify and validate your domain’s email configurations. It performs real-time checks on MX, SPF, DKIM, DMARC, MTA-STS, BIMI records, and blacklist status to ensure proper email deliverability and domain security.

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✅ Why Use Email Domain Health Checker?

• 🔒 Prevent Email Spoofing
• 📬 Improve Email Deliverability
• 🛡 Protect Sender Reputation
• 🧠 Understand and Fix DNS Misconfigurations
• 🌍 Monitor Domain Health Across Nameservers

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🚀 Features

🔍 Core Validation

• MX Records – Validate mail server configuration and priority
• SPF Records – Check authorized sending servers
• DKIM Records – Validate digital signature setup
• DMARC Records – Analyze policy, reporting, and alignment
• MTA-STS – Enforce email encryption policies
• BIMI – Confirm branding support and logo setup
• Email Blacklist Check – Detect domain blacklisting
• IP Blacklist Check – Detect blacklisted sending IPs

📊 Advanced Tools

• Real-time DNS lookups
• Color-coded visual status indicators (green/yellow/red)
• Best practice suggestions and configuration tips
• Support for DKIM selectors
• Result consistency check across multiple nameservers
• Expandable sections for each DNS category

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🧩 Installation

1. Download the email-domain-health-checker.zip file.
2. Go to Plugins > Add New in your WordPress Admin.
3. Upload the ZIP and click Install Now.
4. Activate the plugin via the Plugins menu.
5. Use shortcode [edhsc] to embed the checker anywhere.

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📋 Shortcode Options

Use [edhsc] with the following parameters:

Attribute	Description
default_domain	Pre-fills the domain field
show_sections	Comma-separated list (e.g. mx,spf,dkim)
theme	light, dark, or auto
result_display	accordion, tabs, or full
button_text	Custom scan button label
placeholder_text	Custom placeholder for domain input
hide_input	true to hide domain input field

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📘 How to Use

1. Add [edhsc] shortcode to any page/post.
2. Enter a domain (e.g. yourdomain.com).
3. Optionally, enter a DKIM selector (e.g. default, google).
4. Click Scan to analyze DNS and email records.
5. Expand result sections to view raw data, pass/fail status, and suggestions.

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🛠 Troubleshooting

• Scan Button Not Working?
  • Check browser console for errors
  • Ensure PHP functions like dns_get_record() are enabled
  • Confirm WordPress version is 5.0+
• Inconsistent Results?
  • Wait for DNS propagation (24–48 hrs after changes)
  • Clear cache (DNS/browser)
• Missing DKIM Selector?
  • Try known values: default, google, selector1
• Too Many SPF Lookups?
  • Simplify includes and remove unused mechanisms
• No DMARC Reports Received?
  • Validate rua/ruf tags and email domains

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📅 Changelog

v1.0.0

• Initial release
• Support for MX, SPF, DKIM, DMARC, MTA-STS, BIMI
• Email and IP blacklist checks
• Shortcode support with customization

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🧭 Roadmap

• ✅ Basic DNS + blacklist scanning
• ⏳ PDF report export
• ⏳ Email alerts and scheduled scans
• ⏳ API integrations (e.g., Google Workspace, Microsoft 365)
• ⏳ Bulk domain scanning
• ⏳ Custom validation rules
• ⏳ Record generators (MX, SPF, DKIM, etc.)
• ⏳ TLS-RPT support

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💡 Use Cases

• ✅ Webmasters checking email configuration
• ✅ Agencies auditing clients’ DNS records
• ✅ Email marketers improving deliverability
• ✅ Developers troubleshooting sending issues
• ✅ Anyone securing email communications

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💬 Support

Having trouble or need help?

📧 Contact Us
📘 Documentation
🎯 View Demo

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📝 License

Licensed under GPL v2 or later.

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🙌 Credits

• Based on RFC standards for SPF, DKIM, DMARC, MTA-STS, and BIMI.
• Uses public DNS libraries and blacklist APIs.
• Built with ❤️ by [Your Team or Developer Name].