About this plugin
Johneid Newsletter Express is a lightweight, high-performance email subscription and campaign management plugin designed for WordPress. Built with fast AJAX form submissions and seamless delivery engine integrations, it allows you to capture leads without reloading pages and broadcast email newsletters directly from your WordPress admin panel.
Key Features
- 3 Modern Front-End Form Themes: Choose between Inline Bar, Card Design, and Dark Mode Accent Box styles.
- AJAX-Powered Subscriptions: Submissions complete instantly without page reloads, complete with an animated loading spinner and dynamic error/success messaging[cite: 6].
- Domain MX Verification: Validates the user’s email domain MX/A records during sign-up to prevent fake or undeliverable email registrations.
- Multiple Mail Delivery Providers:
- Default WordPress Mail ( wp_mail )
- Custom Domain SMTP (cPanel, Google Workspace, Mailtrap, etc.)
- SendGrid API
- Mailgun API
- Postmark API
- Brevo (Sendinblue) API
- Subscriber Management: View and remove subscribers directly from the admin dashboard with automated database table checks.
- Campaign Broadcaster: Draft and dispatch styled HTML email newsletters with template tags like {name} for personalization.
- SMTP Diagnostics: Integrated test email feature with error-logging transients for easy troubleshooting.
External services
This plugin allows integration with third-party email delivery services (SendGrid, Mailgun, Postmark, and Brevo) to dispatch newsletter campaigns and transactional emails.
- SendGrid API: Used for sending emails via SendGrid’s cloud mail server when selected as the delivery provider. It transmits recipient email addresses, sender info, subject lines, and message content when a campaign or message is dispatched. Provided by Twilio SendGrid: Terms of Service, Privacy Policy.
- Mailgun API: Used for dispatching outgoing emails when configured by the site administrator. It sends recipient addresses, message headers, and body contents over HTTPS. Provided by Mailgun Technologies: Terms of Service, Privacy Policy.
- Postmark API: Used for transactional and newsletter email delivery. It sends the recipient’s email address, subject, and HTML body contents to Postmark’s servers. Provided by ActiveCampaign, LLC (Postmark): Terms of Service, Privacy Policy.
- Brevo API: Used for remote SMTP mail relay when selected as the active mail provider. It transmits sender/recipient credentials, subjects, and email html content. Provided by Brevo: Terms of Service, Privacy Policy.
Shortcode Usage
Display the subscription form anywhere on your posts, pages, or widgets using the shortcode:
[johneid_newsletter_form]
Available Parameters
- style: inline (default), card, or dark
- title: Custom heading text
- subtitle: Custom sub-heading text
Examples
-
Default Inline Bar:
[johneid_newsletter_form]
-
Card Theme:
”]
-
Dark Mode Theme:
”]