Really Simple Security – Simple and Performant Security (formerly Really Simple SSL) vs MailerPress –

MailerPress is a free email marketing and newsletter plugin for WordPress. Build professional email campaigns with a drag-and-drop editor, manage unlimited subscribers and lists, schedule newsletters, and send automated emails — all from your WordPress dashboard. Whether you’re a blogger sending a weekly newsletter, an online store owner looking to customize WooCommerce emails (paid plan required), or a marketer running large-scale email campaigns, MailerPress gives you everything you need — with no subscriber limits and no sending restrictions. Drag-and-Drop Email Editor Create beautiful email newsletters without writing a single line of code. The MailerPress email editor is inspired by the WordPress Block Editor (Gutenberg), so it feels instantly familiar: Drag-and-drop blocks to build your email layout Pre-built email templates to get started in seconds Save and reuse your own custom layouts Full theme.json support for consistent branding with Full Site Editing Google Fonts integration with local hosting for fast loading MJML template import for advanced email designs Responsive emails that look great on every device Subscriber Management & List Building Grow your email list with powerful subscriber management tools, completely free: Unlimited subscribers, lists, and tags — no restrictions Customizable opt-in forms with shortcode — works with any page builder (Elementor, Bricks, Divi, and more) Gutenberg opt-in form block for the Block Editor Embeddable opt-in forms for external websites Double opt-in with customizable confirmation emails CSV import and export for easy subscriber migration Advanced subscriber segmentation GDPR-compliant subscription management with built-in unsubscribe Email Campaigns & Newsletter Scheduling Send newsletters and email campaigns on your schedule: Create and send email campaigns to your subscriber lists Schedule newsletters for future delivery Merge tags for personalized email content (subscriber name, custom fields, and more) Content retrieval from posts and pages Flexible click and open tracking (track, anonymize, or disable) Detailed campaign analytics and performance reports Email Automation Automate your email marketing to save time and boost engagement: Automated post notification emails when you publish new content Scheduled email campaigns with precise timing Automated double opt-in confirmation follow-ups (paid plan required) Advanced automation workflows with triggers and conditions (paid plan required) Supported WordPress Plugin Integrations Connect MailerPress with popular form, page builder, e-commerce, membership, and automation plugins: Explore all available integrations: https://mailerpress.com/integrations/ Contact Form 7 (free) — map form fields, lists, tags, custom fields, and double opt-in settings to add subscribers Gravity Forms (paid plan required) — add form submissions to MailerPress lists with field mapping Fluent Forms (paid plan required) — capture form submissions and synchronize subscriber data Elementor (paid plan required) — use the MailerPress widget and Elementor Pro form action Bricks Builder (paid plan required) — build opt-in forms with the native MailerPress element Divi Builder (paid plan required) — connect the Divi Email Optin module to MailerPress WooCommerce (paid plan required) — capture checkout opt-ins, manage subscriber preferences, and customize transactional emails Paid Memberships Pro (paid plan required) — collect newsletter opt-ins at checkout and display subscription preferences in member accounts Advanced Custom Fields / ACF (paid plan required) — use ACF content in Query blocks and campaign content WordPress users (paid plan required) — synchronize WordPress user accounts with MailerPress contacts Third-party automation integrations are also available for Bit Flows, FlowMattic, OttoKit, and SureForms. These integrations are maintained by their respective plugin authors, and feature availability may depend on their plans. WooCommerce Email Marketing (paid plan required) Turn your WooCommerce store into an email marketing machine: Design custom WooCommerce transactional emails with the drag-and-drop editor Override default WooCommerce order confirmation, shipping, and account emails Send promotional email campaigns to your customers Retrieve WooCommerce product content directly in your newsletters Segment subscribers based on purchase behavior Incoming & Outgoing Webhooks (paid plan required) Connect MailerPress to any external system: Incoming webhooks to add subscribers from external platforms Outgoing webhooks to send real-time events to third-party services Build custom integrations with your existing tools Email Sending Options Send emails using your preferred method: PHP Mail (default — works out of the box) Custom SMTP configuration Brevo / Sendinblue integration (paid plan required) SendGrid integration (paid plan required) Gmail / Google Workspace integration (paid plan required) Mailgun integration (paid plan required) Mailjet integration (paid plan required) Postmark integration (paid plan required) Amazon SES integration (paid plan required) Emailit integration (paid plan required) SMTP2GO integration (paid plan required) Resend integration (paid plan required) Bounce management via email provider APIs (paid plan required) All Free Features Drag-and-drop email editor inspired by WordPress Block Editor Unlimited subscribers, lists, tags, and campaigns Email newsletter creation and scheduling Customizable opt-in forms (shortcode + Gutenberg block) Double opt-in with confirmation emails CSV import/export for subscriber migration Subscriber segmentation Contact Form 7 integration Email campaign analytics Post and page content retrieval for newsletters Click and open tracking (with anonymous option) Merge tags for email personalization MJML template import Google Fonts with local hosting GDPR-compliant with built-in unsubscribe Self-hosted — your data stays on your server Full theme.json and FSE support Hundreds of developer hooks and filters REST API for custom integrations Paid Plan Features Upgrade to MailerPress for advanced email marketing capabilities: WooCommerce email customization — design and override transactional emails (order confirmation, shipping, account emails) with the drag-and-drop editor Professional email delivery — Brevo, SendGrid, Gmail / Google Workspace, Mailgun, Mailjet, Postmark, Amazon SES, Emailit, SMTP2GO, Resend AI-powered email content — OpenAI, Claude by Anthropic, DeepSeek, Mistral, and Google Gemini for content optimization and image generation Advanced form integrations — Gravity Forms and Fluent Forms Page builder integrations — Elementor, Bricks Builder, and Divi Builder E-commerce and membership integrations — WooCommerce and Paid Memberships Pro WordPress user synchronization — keep WordPress user accounts connected with MailerPress contacts Advanced Custom Fields integration — use ACF content in Query blocks and campaigns Incoming and outgoing webhooks — connect MailerPress to external apps and automation platforms Advanced automation workflows — triggers, conditions, and behavioral targeting Custom fields and advanced segments — target subscribers based on behavior and data Premium email templates — professional designs ready to use Embed opt-in forms on external websites — grow your list beyond WordPress Bounce management — automatic handling via email provider APIs Automated double opt-in follow-ups — re-engage pending subscribers White-label options — customize MailerPress branding Priority support — dedicated customer assistance Developer-Friendly MailerPress is built for developers who need full control: Hundreds of hooks and filters — customize every aspect of the plugin REST API — build custom integrations and applications MJML support — use MJML templates for advanced email design workflows React-based architecture — modern, extensible, and performant Privacy & GDPR MailerPress is fully GDPR-compliant and privacy-first. No data is collected by us — everything stays on your server. Built-in unsubscribe links, double opt-in, and data export tools help you stay compliant. When using third-party email providers, please review their respective privacy policies. Translations MailerPress is available in English, French, Spanish, Dutch, and Arabic. Help translate MailerPress into your language. From the same team Try SEOPress, the best SEO plugin for WordPress

Easily improve site security with WordPress Hardening, Two-Factor Authentication (2FA), Login Protection, Vulnerability Detection and SSL certificate. Really simple, Effective and Performant WordPress Security Really Simple Security is the most lightweight and easy-to-use security plugin for WordPress. It secures your WordPress website with SSL certificate generation, including proper 301 https redirection and SSL enforcement, scanning for possible vulnerabilities, Login Protection and implementing essential WordPress hardening features. We believe that security should have the absolute minimum effect on website performance, user experience and maintainability. Therefore, Really Simple Security is: Lightweight: Every security feature is developed with a modular approach and with performance in mind. Disabled features won’t load any redundant code. Easy-to-use: 1-minute configuration with short onboarding setup. Security Features Easy SSL Migration Migrates your website to HTTPS and enforces SSL in just one click. 301 redirect via PHP or .htaccess Secure cookies Let’s Encrypt: Install an SSL Certificate if your hosting provider supports manual installation. Server Health Check: Your server configuration is every bit as important for your website security. WordPress Hardening Tweak your configuration and keep WordPress fortified and safe by tackling potential weaknesses. Prevent code execution in the uploads folder Prevent login feedback and disable user enumeration Disable XML-RPC Disable directory browsing Username restrictions (block ‘admin’ and public names) and much more.. Vulnerability Detection Get notified when plugins, themes or WP core contain vulnerabilities and need appropriate action. Login Protection Allow or enforce Two-Factor Authentication (2FA) for specific user roles. Users receive a two-factor code via Email. Improve Security with Really Simple Security Pro Protect your site with all essential security features by upgrading to Really Simple Security Pro. Advanced SSL enforcement Mixed Content Scan & Fixer. Detect files that are requested over HTTP and fix them to HTTPS, both Front- and Back-end. Enable HTTP Strict Transport Security and configure your site for the HSTS Preload list. Firewall Really Simple Security Pro includes a performant and efficient WordPress firewall, to stop bots, crawlers and bad actors with IP and username blocks. 404 blocking – Blocks crawlers as they trigger unusual numbers of 404 errors. Region blocking – Only allow/block access to your site from specific regions. Automated and customisable Firewall rules. IP blocklist and allowlist. Security Headers Security headers protect your site visitors against the risk of clickjacking, cross-site-forgery attacks, stealing login credentials and malware. Independent of your Server Configuration, works on Apache, LiteSpeed, NGINX, etc. Protect your website visitors with X-XSS Protection, X-Content-Type-Options, X-Frame-Options, a Referrer Policy and CORS headers. Automatically generate your WordPress-tailored Content Security Policy. Vulnerability Measures When a vulnerability is detected in a plugin, theme or WordPress core you will get notified accordingly. With Vulnerability Measures, you can configure simple but effective measures to make sure that a critical vulnerability won’t remain unattended. Force update: An update process will be tried multiple times until it can be assumed development of a theme or plugin is abandoned. You will be notified during these steps. Quarantine: When a plugin or theme can’t be updated to solve a vulnerability, Really Simple Security can quarantine the plugin. Advanced Site Hardening Choose a custom login URL Automated File Permissions check and fixer Rename and randomize your database prefix Change the debug.log file location to a non-public folder Disable application passwords Control admin creation Disable HTTP methods, reducing HTTP requests Login Protection Secure your website’s login process and user accounts with powerful security measures. Two-Step verification (Email login) 2FA (two factor authentication) with TOTP Passwordless login with passkey login Enforce strong passwords and frequent password change Limit Login Attempts With Limit Login Attempts you can configure a threshold to temporarily or permanently block IP addresses or (non-existing) usernames. You can also throw a CAPTCHA after a failed login (hCaptcha or Google reCaptcha) Access Control Restrict access to your site for specific regions. Add specific IP addresses or IP ranges to the Blocklist or Allowlist. Useful Links Documentation Security Definitions Translate Really Simple Security Issues & pull requests Feature requests Love Really Simple Security? If you want to support the continuing development of this plugin, please consider buying Really Simple Security Pro, which includes some excellent security features and premium support. About Really Simple Plugins Our mission is to make complex WordPress requirements really easy. Really Simple Security is developed by Really Simple Plugins. For generating SSL certificates, Really Simple Security uses the le acme2 PHP Let’s Encrypt client library, thanks to ‘fbett’ for providing it. Vulnerability Detection uses WP Vulnerability, an open-source initiative by Javier Casares. Want to join as a collaborator? We’re on GitHub as well!