Custom SMTP: Email Deliverability – FREE & Easy-to-use
Effortlessly configure WordPress SMTP and monitor all sent emails. Built-in email logging with preview, error debugging, and WooCommerce support.
5(1 reviews)
·90 active installs·Updated 1 month agoAs of April 2026, Custom SMTP: Email Deliverability is a WordPress smtp plugin with 90 active installations and a 5/5 rating from 1 reviews. It has been downloaded 2.8K+ times in total. Requires WordPress 6.0+ and PHP 7.4+. Available on WordPress.org since 2024. Recently updated within the last 3 months. Top alternative: WP Mail SMTP by WPForms – The Most….
5/51 reviews
90active installs
2.8K+total downloads
2 yearssince 2024
Overview
Add Mail SMTP settings for WordPress
Looking to modify the SMTP on your WordPress site?
Our Custom SMTP solution offers you this possibility, allowing you to easily change your WordPress SMTP settings, ensuring your emails consistently land in the recipient’s inbox.
Custom SMTP solves your email deliverability problems by reconfiguring WordPress to use a proper SMTP provider when sending emails.
What’s more, our intuitive settings page and comprehensive documentation will guide you through the process, making the task of modifying your SMTP settings easier than ever.
Custom SMTP is a free tool, packed with all the essential features you need to send your WordPress emails with absolute confidence!
Built-in Email Logging
Never wonder if your emails were sent again. Custom SMTP a…
Screenshots
Ratings & Reviews
51 reviews
5 ★
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Compatibility
| WordPress | 6.0+ requiredTested up to 6.9.4 |
| PHP | 7.4+ required |
Top Alternatives to Custom SMTP: Email Deliverability…
Frequently Asked Questions
Changelog
2.1.0
Release Date – February 4, 2026
New Features
* Provider Presets: One-click configuration for Gmail, Outlook, AWS SES, SendGrid, Mailgun, Brevo, Postmark, Mailjet, Zoho, and Yahoo.
* Auto-fill settings: Select a provider and Host, Port, Encryption, Authentication are automatically configured.
* Documentation links: Quick access to each provider’s SMTP documentation.
UI Improvements
* Redesigned settings page with card-based layout.
* Status bar showing SMTP configuration state at a glance.
* Collapsible Advanced Settings section.
* Save button in each settings card for quick access.
* Responsive design for mobile admin access.
Contributors
Plugin data sourced from WordPress.org. Analysis and metrics by PluginSift.