Smush – Image Optimization, Compression, Lazy Load, WebP & CDN vs FluentSMTP – WP Mail SMTP Plugin with Amazon SES, SendGrid, Mailgun, Postmark, Cloudflare, toSend, Gmail and Any SMTP

WP Mail SMTP Plugin for Any Email Service Provider Are your WordPress emails not sending, landing in spam, or failing silently? FluentSMTP is a free WordPress SMTP plugin that fixes email deliverability by routing every wp_mail() call through the email service you choose: Gmail, Google Workspace, Amazon SES, SendGrid, Mailgun, Cloudflare Email, toSend, Postmark, Brevo (Sendinblue), SparkPost, Netcore, Elastic Email, SMTP2GO, Outlook / Office 365, Zoho, or any SMTP host. FluentSMTP talks to each provider’s own API rather than only SMTP, so your transactional and marketing email goes out quickly and lands in the inbox. Set your From name and email, turn on email logging, add failure alerts, and route different senders to different providers, all from one screen. Connect as many email services as you want, and FluentSMTP routes each email to the right one based on its From address. 💚 100% Free Forever — No Pro Version, No Upsells, No Paywalls 💚 FluentSMTP is 100% free and open source, and it always will be. There is no “pro” version, no premium add-ons, no locked features, no email capture wall, no nagging upgrade prompts, no feature limits, and no paid tier. Every integration listed here, from Amazon SES, Gmail and Outlook to SendGrid, Mailgun, Cloudflare, toSend, Postmark, Brevo and SparkPost, is fully available at no cost. You will never have to pay a cent to use any feature of FluentSMTP. We have pledged this as part of our “Five for the Future” participation, an initiative started by the WordPress Foundation. Our parent company WPManageNinja LLC builds commercial products for WordPress businesses and runs a stable, profitable business on those, which means FluentSMTP is our way of giving back to the WordPress community, not a funnel. 👉 Read why it’s 100% free (always) 👈 🎉 Supported Email Service Providers and SMTP Connections Amazon SES (API) Gmail (OAuth API) Google Workspace (OAuth API) Outlook / Office 365 / Microsoft 365 (OAuth API) SendGrid (API) Mailgun (API) Cloudflare Email Sending (API) toSend (API) Brevo, formerly Sendinblue (API) Netcore, formerly Pepipost (API) Postmark (API) SparkPost (API) SMTP2GO (API) Elastic Email (API) Zoho Mail (SMTP) PHP mail() Any SMTP server: your web host, Gmail SMTP, Yahoo, Outlook.com, Yandex and more More native integrations coming soon 🎉 FluentSMTP Features FluentSMTP is built for speed, reliability and scale. Real-time email delivery over each provider’s API Email routing across multiple email connections Connect any email service provider or SMTP server Fallback email connection when the primary one fails Email logging with full headers, body and server response Resend any logged email to any recipient Detailed email reporting and charts Daily connection health monitoring Failure alerts via Telegram, Slack, Discord and Pushover WP-CLI support A fast, modern admin with a dark theme Most importantly, this plugin is free and will always be free. 👉 Read why it’s 100% free (always) 👈 How does FluentSMTP work? Like any WP mail SMTP plugin, FluentSMTP replaces the WordPress wp_mail() function and hands every email to the service you connected, using that service’s own API where one exists, or the SMTP host, port and credentials you gave it for a plain SMTP connection. Every plugin and theme that sends email through wp_mail() is covered, with nothing to change on their side. Email Logging and Debugging FluentSMTP logs every email your WordPress site sends, so you can check at any time what went out, what did not, and what the mail server said about it. Failed emails can be retried, and any logged email can be resent. 🎉 Amazon SES (Native API Connection) The Amazon SES connection sends your WordPress email through Amazon’s low-cost, high-deliverability infrastructure, set up in a couple of minutes. It uses Amazon’s current SES API and supports every SES region, including the EU Sovereign Cloud. The SES client reuses its cURL connection across sends, so a burst of emails does not pay for a new handshake each time. 🎉 Gmail or Google Workspace (Native API Connection) Connect your Gmail or Google Workspace account and send WordPress email over Google’s API rather than Gmail SMTP. The connection uses OAuth, so there is no app password to create or store. 🎉 SendGrid API Connection SendGrid runs a globally distributed sending platform, and the SendGrid API connection takes about a minute to set up. Read the SendGrid connection documentation 🎉 Mailgun Email API Connection Mailgun is a leading email sending service trusted by 225,000+ businesses. You can rely on their globally distributed, cloud-based architecture for sending your WordPress emails. The Mailgun connection takes about a minute to set up, and it uses their API rather than SMTP. Read the Mailgun connection documentation 🎉 Brevo (formerly Sendinblue) API Connection Brevo is a platform for growing businesses with a strong transactional email service. They serve more than 80,000 companies around the world and send millions of emails every day. If you use Brevo, FluentSMTP connects to its API and sends your WordPress email through it. Read the Brevo connection documentation 🎉 Netcore (formerly Pepipost) Email API Connection Netcore is a complete email sending partner with a user-friendly dashboard, statistics and real-time delivery information. The Netcore connection takes about a minute to set up, and it uses their API rather than SMTP. Read the Netcore API connection documentation 🎉 SparkPost Email API Connection SparkPost is a reliable email sending service with detailed analytics. The SparkPost connection takes about a minute to set up. Read the SparkPost connection documentation 🎉 Postmark API Connection Postmark is a highly reliable transactional email service, known for fast delivery and top-tier inbox placement. FluentSMTP connects to Postmark’s Server API directly: paste your Server Token, pick a Message Stream, and your transactional email goes through Postmark, with attachments, CC/BCC, Reply-To and custom headers all carried across. Read the Postmark connection documentation 🎉 Elastic Email API Connection Elastic Email handles both transactional and marketing mail, with per-message statistics in its dashboard. FluentSMTP uses their official API. 🎉 Outlook / Office 365 / Microsoft 365 API Connection Connect your Outlook.com, Office 365 or Microsoft 365 account and send WordPress email over Microsoft’s Graph API. The connection uses OAuth2, so no password is stored on your site, and single-tenant Entra app registrations are supported. Read the documentation for connecting Office 365 email with WordPress 🎉 SMTP2GO Email API Connection SMTP2GO handles both transactional and marketing mail, with per-message statistics in its dashboard. FluentSMTP uses their official API. 🎉 Cloudflare Email API Connection Send WordPress emails through Cloudflare Email Sending using their native REST API. If your domain is already on Cloudflare, you can send transactional email directly from Cloudflare’s edge network, fast, reliable, and with built-in SPF/DKIM/DMARC. FluentSMTP handles the full request shape, including attachments, CC/BCC, Reply-To, and custom headers. The API token is checked when you save it and again on the connection screen, so a bad token is reported before an email needs it. 🎉 toSend Email Sending Provider toSend is a modern transactional email service with a simple API, per-domain analytics, and fast delivery. FluentSMTP ships a native toSend integration: paste your API key, set a verified From address, and you’re sending in under a minute. Failed sends are logged with full payloads so you can resend or debug without leaving WordPress. Read the toSend WordPress setup guide 🎉 Any SMTP Server FluentSMTP works with any service that offers an SMTP connection, including your web host’s mail server, Gmail SMTP, Yahoo, Outlook.com, Zoho Mail and Yandex Mail. You can set the following options: Specify an SMTP host. Specify an SMTP port. Choose the encryption (SSL or TLS). Choose whether to use SMTP authentication. Specify the SMTP username and password. That’s it 💯 Read the SMTP connection documentation 🚀 A Fast, Modern Admin 🚀 Built with Vue 3 as a single-page application, with a light and a dark theme. A lean interface that needs no learning curve. A dashboard with charts and stats showing how your email is doing. 🚀 Automatic Email Routing 🚀 Add as many email connections as you want. FluentSMTP routes each email to the right one based on its From address. Route your transactional emails through one connection and your marketing emails through another, or set a fallback connection that takes over when the primary one fails. 🚀 Email Logs and Reporting 🚀 Want to know how much mail your site is sending, and what it is? The email log lists every email, with charts of the daily totals, and you can resend any of them at any time. It is useful for keeping a record, auditing what goes out, and debugging while you build. You can turn logging off, in which case only failed emails are recorded. Logs live in their own database table, so your WordPress tables stay as they are. 🚀 Connection Health Monitoring 🚀 An expired OAuth token or a removed API key stays invisible until the first email that needed it fails. FluentSMTP checks every connection once a day, shows failures on the dashboard, and notifies you over your configured notification channels the moment a connection starts failing. Only newly broken connections notify, so a known issue will not nag you every day. 🚀 WP-CLI Support 🚀 Manage FluentSMTP from the terminal, which matters most when the emails you need are the ones getting you into the admin: wp fluent-smtp test – send a test email through any connection wp fluent-smtp health – check every connection wp fluent-smtp stats – sent and failed counts wp fluent-smtp prune-logs – clean up old email logs 🚀 Real-time Notifications on Email Failures via Telegram, Slack, Discord and Pushover 🚀 Connect Telegram, Slack, Discord or Pushover, as many as you want at once, and FluentSMTP messages you there the moment an email fails to send, so you find out before your customers do. 🚀 Security 🚀 FluentSMTP is built with security and scale in mind, and gives you several ways to keep your credentials and your sending safe. Store your SMTP and API credentials in wp-config.php instead of the database. Credentials kept in the database are encrypted. Auto-delete old email logs after the number of days you choose. Connections use each provider’s API directly, over OAuth where the provider offers it, so no password needs to be stored where a token will do. 🚀 Plain-Text Version of HTML Email 🚀 FluentSMTP can convert your HTML email to plain text as it sends, and deliver both parts as a multipart message. This helps deliverability and your spam score. Turn it on in the settings. 👉 Credits 👈 FluentSMTP is built by WPManageNinja LLC, the team behind Fluent Forms, FluentCRM and Ninja Tables. FluentSMTP is free and open source, and we will never release a pro version. That is not a feature gap: everything the plugin does is in the free version. We wrote an article about why we made it and where we are taking it. The full source code is on GitHub, and contributions are welcome. 👉 View on GitHub 👈 Compatible With Fluent Forms – The Fastest Form Builder Plugin FluentCRM – Email Marketing Automation, Email Newsletter and CRM Plugin for WordPress WooCommerce Elementor Forms Contact Form 7 Gravity Forms WPForms Lite and WPForms Pro Forminator – Contact Form Ninja Forms Contact Form Form Maker by 10Web Formidable Form Builder GiveWP – Donation Plugin Fast Secure Contact Form Visual Forms Builder Contact Form Builder PlanSo Forms SendPress Newsletters WP HTML Mail Email Templates … and every other plugin that sends mail through the WordPress wp_mail() function. Easy Migration from WP Mail SMTP by WPForms Moving from WP Mail SMTP by WPForms takes a few seconds. Install and activate FluentSMTP on your site. Go to Settings -> FluentSMTP. It will automatically detect your existing configuration from “WP Mail SMTP by WPForms”. Click the “Import From WP Mail SMTP” button and that’s it. Deactivate “WP Mail SMTP by WPForms” and enjoy FluentSMTP. One Click Migration from Easy WP SMTP Moving from Easy WP SMTP takes a few seconds. Install and activate FluentSMTP on your site. Go to Settings -> FluentSMTP. It will automatically detect your existing configuration from “Easy WP SMTP”. Click the “Import From Easy WP SMTP” button and that’s it. Deactivate “Easy WP SMTP” and enjoy FluentSMTP. What’s Next If you like this plugin, then consider checking out our other plugins: FluentCRM – Email Marketing Automation and CRM Plugin for WordPress Fluent Forms – Fastest WordPress Form Builder Plugin Fluent Support – WordPress Helpdesk and Customer Support Ticket Plugin Ninja Tables – Best WP DataTables Plugin for WordPress Ninja Charts – Best WP Charts Plugin for WordPress Paymattic – Simple Payment Donations & Subscriptions Plugin

Compress images, optimize images, and enable image lazy load automatically with the powerful Smush image optimizer to keep your WordPress site fast, without losing quality. Smush makes it easy to optimize images, compress images, and deliver images faster across your entire WordPress site. This all-in-one image optimizer automatically reduces image file sizes, enables image lazy load, and serves modern formats like WebP and AVIF, all without breaking image quality or adding extra work. Whether you’re running a blog, store, or portfolio, Smush helps you optimize images at scale and keep your site fast with a trusted WordPress image optimizer. Trusted by 1+ Million Sites | 4.8/5 Star Rating Get everything you need to optimize images and speed up your site. Smush works out of the box with no complicated setup – just install and let it handle the rest. Compress images without losing quality Reduce image file size automatically while keeping your images sharp and clear. Smush is an easy-to-use image optimizer which let’s you compress images using both lossless and lossy compression, giving you the best balance of quality and performance without extra work. You can also compress images outside the media library using Directory Smush, making it easy to optimize images stored in theme folders, plugins, or other directories on your server. Lazy load images for faster pages Enable image lazy load across your site so images load only when needed. This image optimizer improves initial page speed and creates a smoother experience for visitors without extra configuration. Serve WebP and AVIF images automatically (PRO) Convert images to WebP and AVIF and serve them automatically to supported browsers. Smush helps you optimize images using next-gen formats to reduce file size and improve load times across your WordPress site. Deliver images faster with an Image CDN (PRO) Serve images through a global image CDN to reduce latency and improve load times for visitors around the world. 119 global CDN servers Up to 500 GB of bandwidth Faster image delivery based on visitor location Improved performance for image-heavy and high-traffic sites Automatically resize and fix image dimensions (PRO) Eliminate common PageSpeed warnings and improve layout stability with automatic image sizing. Smush dynamically resizes images to perfectly fit their containers, regardless of original size, helping fix the “Properly size images” warning in Google PageSpeed Insights. It also automatically adds missing width and height attributes to your images, improving rendering speed and reducing layout shifts. This helps you meet the “Ensure images have explicit width and height” recommendation without any manual work. Optimize your entire site, automatically Smush works across your whole site as a powerful image optimizer to optimize images as you upload them and maintain performance over time without manual work. Optimize images automatically on upload Compress images in bulk or individually Works with your existing media library No need to re-upload images Enable image lazy load across your site Convert images to WebP and AVIF Deliver images with an integrated image CDN Automatically resize and serve correctly sized images Optimize images outside the media library with Directory Smush Built for performance Smush improves page speed and overall performance by reducing image weight and improving how images are delivered. Reduce page load times Improve user experience Better performance for image-heavy pages Supports image lazy load and preload images (PRO) for faster perceived performance Works with your existing setup Smush is built to work with your current WordPress setup, including popular themes, page builders, and plugins. Compatible with Gutenberg, Elementor, WPBakery, and more Works with WooCommerce stores No need to change your workflow Easy to enable and configure Designed to be simple You don’t need to be a performance expert to optimize images with Smush image optimizer. Works out of the box Simple settings when you need them No technical knowledge required Safe to use on any site Why choose Smush? There are plenty of image optimization plugins, but Smush focuses on making it easy to optimize images, compress images, and improve performance without complexity. As a leading WordPress image optimizer, Smush gives you powerful optimization tools without the technical hassle. Trusted by over 1 million WordPress users Built specifically for WordPress Regular updates and improvements Backed by the WPMU DEV team Get started in minutes Install Smush, activate it, and start to compress images, optimize images, and enable image lazy load right away. This easy-to-use image optimizer helps most sites see improvements immediately without changing how they upload or manage images. About Us WPMU DEV is a premium supplier of quality WordPress plugins, services and support. Learn more here: https://wpmudev.com/ Don’t forget to stay up to date on everything WordPress from the Internet’s number one resource: WPMU DEV Blog Hey, one more thing… we hope you enjoy our free offerings as much as we’ve loved making them for you! Contact and Credits Originally written by Alex Dunae at Dialect (dialect.ca, e-mail ‘alex’ at ‘dialect dot ca’), 2008-11.