Mesh SMTP – Easy WordPress SMTP & vs Smush – Image Optimization, Compression, Lazy Load, WebP & CDN

Mesh SMTP is a lightweight WordPress SMTP plugin for website owners who want a clear way to configure outgoing email without a crowded dashboard. Connect WordPress to Gmail, Google Workspace, Microsoft 365, Zoho Mail, Hostinger Email, SendGrid, Mailgun, or any custom SMTP server. The guided setup explains each field in plain language and separates mailer acceptance from real inbox delivery. Mesh SMTP works with email sent through WordPress wp_mail(), which commonly includes: Contact form notifications Password reset emails New user and administrator notifications WooCommerce transactional emails WordPress update and security notifications Messages sent by compatible themes and plugins Easy 3-Step WordPress SMTP Setup Choose your email provider from simple provider cards. Enter the SMTP connection details with clear host, security, port, authentication, username, password, and sender guidance. Send and confirm a test email so the dashboard does not claim delivery before you verify the inbox. Main Features Simple three-step SMTP setup wizard Provider presets for Gmail, Microsoft 365, Zoho, Hostinger, SendGrid, and Mailgun Custom SMTP support with optional authentication for trusted relays Test email flow with honest Accepted, Received and Confirmed, Failed, and Retest Required states Automatic test invalidation when SMTP settings change Clear SMTP host, TLS/SSL, port, authentication, username, password, From Email, and From Name fields Recommended port guidance without overwriting a custom port Saved password indicator with a dedicated Remove Saved Password action Warning when another common SMTP plugin appears active Microsoft 365 warning when OAuth or tenant SMTP AUTH policy may be required Privacy-first email logging: Off, failures only, or all mailer results Optional masked, hidden, or full recipient storage Optional subject logging and 7, 14, or 30-day retention Clear Logs and Clear Last Failure actions Masked support summary by default, with an explicit option to include personal details Safe JSON settings export and import without exporting the SMTP password wp-config.php constants for deployment-managed SMTP credentials WordPress Site Health integration Accessible provider cards, wizard steps, live status messages, and password controls Admin assets load only on the Mesh SMTP screen Capability checks, nonces, sanitization, and escaped output Honest Test Email Results A successful wp_mail() response means WordPress and PHPMailer accepted the sending request without returning an error. It does not prove that the message reached the Inbox. Mesh SMTP therefore uses a two-part verification flow: Accepted by mailer — WordPress returned no sending error. Received and confirmed — an administrator checked the Inbox or Spam folder and confirmed receipt. This avoids a misleading “delivered” message when the receiving mail server may still delay, filter, or reject the email. Privacy-First Email Logs Email logging is configurable. The recommended default stores failed emails only, masks recipient addresses, hides subject lines, and removes old entries after 14 days. Mesh SMTP never stores email bodies or attachments in its activity log. Supported Provider Presets Gmail and Google Workspace Outlook and Microsoft 365 Zoho Mail Hostinger Email SendGrid Mailgun Custom SMTP Microsoft 365 Note Some Microsoft 365 tenants do not allow username/password SMTP. OAuth 2.0 or an administrator-enabled SMTP AUTH policy may be required. Mesh SMTP currently supports standard SMTP credentials and displays a warning when the Microsoft preset is detected. Secure wp-config.php Constants Developers can define these constants in wp-config.php to override values saved in WordPress: MESHSMTP_ENABLED MESHSMTP_HOST MESHSMTP_PORT MESHSMTP_SECURE MESHSMTP_AUTH MESHSMTP_USERNAME MESHSMTP_PASSWORD MESHSMTP_FROM_EMAIL MESHSMTP_FROM_NAME The SMTP password is never shown back in the admin interface.

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.