Post SMTP
PluginInstall Post SMTP (WordPress SMTP Plugin) to fix WordPress email delivery. Connect Gmail SMTP, Microsoft 365, Brevo, SendGrid, Zoho, Amazon SES, etc.
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Releases named in the vendor’s changelog or on WordPress.org that the repository does not have yet.
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4.0.2 Not available yet
Security - Resolved Stored DOM-Based Cross-Site Scripting (XSS) vulnerability in failed email logs on WordPress Multisite.
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4.0.1 Not available yet
Rolled back from 4.0.0-beta.1
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3.10.0 Not available yet
NEW - Added SMTP.com as an email service provider.
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3.9.5 Not available yet
TWEAK – Updated dashboard banners and removed the Extensions screen from the plugin menu.
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3.9.4 Not available yet
FIX – Resolved failed builds reported by Plugintests.com
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3.9.3 Not available yet
TWEAK – Rolled back to version 3.9.1 due to socket-related errors.
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3.9.2 Not available yet
TWEAK – Added WordPress 7.0 compatibility.
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3.9.1 Not available yet
TWEAK – Updated Emailit API to v2.
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3.9.0 Not available yet
TWEAK – Updated the Setup Wizard UI for Mailers and improved related content.
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3.8.0 Not available yet
NEW – Added Sweego as an email service provider.
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3.7.0 Not available yet
NEW – Added Mailtrap.io as an email service provider.
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3.6.3 Not available yet
FIX - Escape email content.
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3.6.2 Not available yet
IMPROVEMENT - Added PHP 8+ compatibility.
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3.6.1 Not available yet
IMPROVEMENT: Removed GIF from the plugin to enhance performance and reduce load time.
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3.6.0 Not available yet
NEW – Added Maileroo as an email service provider.
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3.5.0 Not available yet
NEW - Added Emailit email service providers.
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3.4.2 Not available yet
Enhancement - Improved AJAX call security.
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3.4.1 Not available yet
TWEAK - Updated Plugin URI in header
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3.4.0 Not available yet
NEW - Added Resend email service providers.
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3.3.0 Not available yet
NEW - WP Dashboard Widget
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3.2.0 Not available yet
New - Introducing Email Tester to test your email deliverability.
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3.1.4 Not available yet
FIX - To column in email logs was empty in some cases.
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3.1.3 Not available yet
Enhancement: Email logs security enhancement.
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3.1.2 Not available yet
Enhancement: Email logs security enhancement.
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3.1.1 Not available yet
Fix: Raw HTML was sent when resending emails from the log section.
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3.1.0 Not available yet
New: Added SendGrid EU support.
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3.0.2 Not available yet
Updated: Feedback SDK to the latest version.
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3.0.1 Not available yet
Fix: Fixed the UI conflict.
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3.0.0 Not available yet
New: Introduced all New Post SMTP Dashboard for users' ease.
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2.9.14 Not available yet
Tweak - WordPress 6.7 Transalation compatibility added.
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2.9.13 Not available yet
Fix - Users were unable to regenerate Mobile App QR code in admin view.
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2.9.12 Not available yet
Enhancement - Regenerate QR Code Mobile Applicaion security enhancement in admin view reported by Patchstack.
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2.9.11 Not available yet
Updated: Feedback SDK to the latest version.
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2.9.10 Not available yet
Email logs search security enhancement in admin view reported by Patchstack
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2.9.9 Not available yet
Tweak: Typo fixes.
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2.9.8 Not available yet
New: Added SendGrid EU support.
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2.9.7 Not available yet
Fix: Logs filter was not working in Post SMTP Mobile Application
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2.9.6 Not available yet
Tweak - Some strings were not translatable.
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2.9.5 Not available yet
Added: New Successful, Failed, and All email filter on email logs.
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2.9.4 Not available yet
Security Improvement: Sanitized SQL queries suggested by Wordfence team.
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2.9.3 Not available yet
IMPROVEMENT – Email health report settings and template UI
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2.9.2 Not available yet
NEW - Added new filter postsmtppostmarkcontent for developers ease.
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2.9.1 Not available yet
Bug Fix: error appearing "syntax error, unexpected ')'".
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2.9.0 Not available yet
New - Added email health report
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2.8.13 Not available yet
FIXED: Reverted last fix as it was conflicting in some cases.
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2.8.12 Not available yet
FIXED: AJAX call was being interrupted by registersetting when specific plugins were activated.
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2.8.11 Not available yet
Added link to the new POST SMTP app for iOS released.
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2.8.10 Not available yet
Security Improvement: Added check to automatically remove any connected device with incomplete information.
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2.8.9 Not available yet
Added compatibility for InstaWP
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2.8.8 Not available yet
Improvement: Added sanitization and escape functions in POST SMTP Mobile App QR code scanning window.
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2.8.7 Not available yet
Improvement - added sanitization where missing to improve security
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2.8.6 Not available yet
Improvement - Changed banner placement for NEW mobile app for POST SMTP to improve UX.
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2.8.5 Not available yet
Fix: In some cases, there was an issue disconnecting mobile application.
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2.8.4 Not available yet
Fix: From name and emails, prevention settings were not being saved correctly in some cases in the new wizard.
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2.8.3 Not available yet
Fix - Getting error when saving settings in some scenarios.
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2.8.2 Not available yet
Improvement - PHP < 7.3 compatibility added.
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2.8.1 Not available yet
Fix - Other SMTP option in the wizard was not saving the settings correctly.
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2.8.0 Not available yet
NEW - Introducing a NEW 3-step wizard to speed up the initial setup.
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2.7.2 Not available yet
Improvement - Mobile App banner improvement.
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2.7.1 Not available yet
NEW - Show Mobile App Notice on Post SMTP dashboard
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2.7.0 Not available yet
NEW - Added support for POST SMTP app. Visit documentation for more information
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2.6.2 Not available yet
Tested up to WordPress v6.3.2
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2.6.1 Not available yet
Fix: Removed broken link from test email.
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NEW
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2.5.9.4 Not available yet
API endpoint "SendinBlue" has been updated to "Brevo"
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Minor Tweaks
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Compatible & Tested up to WordPress v6.3
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2.5.9.1 Not available yet Release date not stated
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Readme
LicensePost SMTP
Install Post SMTP (WordPress SMTP Plugin) to fix WordPress email delivery. Connect Gmail SMTP, Microsoft 365, Brevo, SendGrid, Zoho, Amazon SES, etc.
👑 Go Pro | 💻Live Demo | 🔌Extensions | 📱Mobile Application
WordPress SMTP Plugin
https://www.youtube.com/watch?v=KOWGLQ0MaX0
Are you dealing with the WordPress not sending emails problem? Post SMTP helps you fix WordPress email delivery by connecting your site to a reliable SMTP or API mailer.
Post SMTP is a free WordPress SMTP plugin that helps you send WordPress emails securely and reliably through Gmail, Microsoft 365, Outlook, Amazon SES, Brevo, Mailgun, SendGrid, Postmark, Zoho Mail, and other supported email service providers.
Beyond SMTP, Post SMTP gives you the tools to monitor WordPress email delivery. Track sent and failed emails with email logs, inspect delivery errors, and get failure alerts when something goes wrong. You can also configure backup SMTP connections to keep your site’s emails moving if your primary mailer becomes unavailable.
With 20+ SMTP and API mailer options, Post SMTP works with the email service you already use. Its monitoring and notification tools help you troubleshoot delivery problems faster and keep important WordPress emails on track.
What it adds
- Shortcodes:
[postman-version] - Integrates with WooCommerce
Faq
Why is WordPress not sending emails?
WordPress uses the PHP mail() function by default, which may not provide reliable email delivery. Post SMTP routes your WordPress emails through a trusted SMTP or API mailer such as Gmail, Microsoft 365, Amazon SES, Brevo, SendGrid, Mailgun, Postmark, etc. This can help fix failed or missing WordPress emails and improve email delivery.
How does Post SMTP improve WordPress email delivery?
Post SMTP connects your WordPress site to a dedicated SMTP or API mailer instead of relying on your web server's default email function. It also provides email logs, delivery error details, backup connections, failure alerts, and even a dedicated mobile app to help you monitor and troubleshoot WordPress email delivery.
Does Post SMTP work with Gmail and Google Workspace?
Yes. Post SMTP supports Gmail and Google Workspace. You can connect your account using Google's supported authentication method, such as OAuth 2.0, and send WordPress emails through your Gmail or Google Workspace account. Post SMTP also offers Gmail One-Click Setup.
Does Post SMTP support Microsoft 365 and Outlook?
Yes. Post SMTP supports Microsoft 365 and Outlook. You can connect your account using Microsoft's supported authentication method, such as an Application (Client) ID and Client Secret, or use Post SMTP's Microsoft One-Click Setup to connect your account and send WordPress emails through Microsoft 365.
Does Post SMTP work with WooCommerce?
Yes. Post SMTP works with WooCommerce and can deliver transactional emails generated by your store, including order notifications, customer emails, password resets, and other WordPress emails.
Does Post SMTP support Contact Form 7?
Yes. Post SMTP works with Contact Form 7 and other WordPress form plugins. Once you configure a supported SMTP or API mailer, Contact Form 7 emails can use that connection instead of your site's default email function.
Can Post SMTP log WordPress emails?
Yes. Post SMTP includes email logging tools that let you review WordPress email activity and troubleshoot failed messages. Depending on your Post SMTP plan and configuration, you can access additional email log features such as ‘Set email logs retention period’.
Can Post SMTP resend failed emails?
Post SMTP provides tools to troubleshoot failed emails, and supported Pro features let you resend failed messages from the email logs. Check the current Pro feature list for the latest availability.
Does Post SMTP support backup SMTP connections?
Yes. Post SMTP supports backup or fallback connections that can help keep your WordPress emails moving when your primary mailer fails. You can configure an additional mailer as a backup connection to improve email reliability.
Can I receive email failure alerts?
Yes. Post SMTP can notify you when WordPress email delivery fails. It supports multiple notification options, including email, Slack, SMS via Twilio, mobile app, push notifications through webhooks and the Chrome Extension, and other supported notification channels. These alerts help you spot email delivery problems quickly and act before they affect your users.
Is Post SMTP free?
Yes. Post SMTP offers a free version that provides SMTP and supported mailer connections for WordPress email delivery. Post SMTP Pro adds premium SMTP Mailers with One-Click Setup, advanced features for email logs, monitoring, reporting, alerts, email open tracking, and other advanced email-management needs.
What is included in Post SMTP Pro?
Post SMTP Pro offers premium mailer options, One-Click Setup for Gmail SMTP and Microsoft 365 SMTP, and advanced email delivery and monitoring capabilities to the free plugin. Depending on the current Pro release, features can include advanced email logs, email quota scheduling, additional monitoring (email open tracking) and reporting tools, enhanced notifications, email resending, and other premium functionality.
Which email providers does Post SMTP support?
Post SMTP supports 20+ SMTP and API mailer options, including Gmail, Google Workspace, Microsoft 365, Outlook, Amazon SES, Brevo, Zoho Mail, Postmark, Mailgun, SendGrid, SMTP.com, Cloudflare Email Service, and other supported providers. Available mailers can change as Post SMTP adds or updates integrations.
How do I migrate from another SMTP plugin to Post SMTP?
You can migrate to Post SMTP by installing the plugin, selecting your email provider, and configuring the required SMTP or API connection. After setup, send a test email and check the email logs to confirm delivery. If you are migrating from another SMTP plugin, review your existing mailer settings and credentials before switching.
What is OAuth 2.0?
A modern replacement for traditional password-based authentication. Post supports the OAuth 2.0 implementations of all three major e-mail providers: Gmail, Office365, Brevo, Mailgun, Hotmail and Yahoo Mail.
How does OAuth 2.0 work?
Post requests a limited access OAuth 2.0 token (valet key) to access the APIs (enter the house) and perform a specific service (handle Gmail SMTP, stay out of Google Docs) with no need for you to surrender your username and password credentials (master house key).
Once access is granted, Post commandeers the WordPress wp_mail() function to provide an incredibly stable mail sub-system.
There are many reasons why OAuth 2.0 is better than any password-based mechanism:
- Post will never ask for your password, so your password can't be stolen
- If you change your password regularly, you will never have to update Post's configuration
- You have tighter control over the data Post has access to. For Google users, it can never access your Calendar or Docs or YouTube; for Yahoo users, it can never access your Flickr
- If your WordPress site gets hacked, you can revoke Post's email access without impacting any other application or website that has access to your account
NEVER give out your Gmail, Microsoft or Yahoo password to a 3rd-party or 3rd-party program that you don't fully trust.
Can I use this plugin to send via Outlook, Microsoft 365, Gmail SMTP, Zoho, Yahoo, or SendGrid SMTP?
Yes! With the Post SMTP Plugin, you can configure any SMTP mailer account, including Brevo, Mailgun, and SendGrid on your WordPress site. Check out our detailed SMTP configuration documentation for all major SMTP service providers.
What is a Client ID?
To use OAuth, your website needs its own Client ID. The Client ID is used to control authentication and authorization and is tied to the specific URL of your website. If you manage several websites, you will need a different Client ID for each one.
How do I get a Microsoft Client ID? (For Hotmail/Live/Outlook.com users only!)
- Go to Microsoft account Developer Center and select 'Create application'.
- In the 'Application name' field, enter 'Post SMTP'. Select 'I accept.'
- Select 'API Settings' from under 'Settings'.
- In 'Redirect URL', enter the redirect URI given by Post (either from the wizard or from the manual configuration page). Select Save.
- Select 'App Settings' from under 'Settings'.
- Enter the Client ID and Client Secret displayed here into the Post's settings page.
How do I get a Yahoo Client ID? (For Yahoo Mail users only!)
- Go to Yahoo Developer Network and select 'Create an App'.
- In the 'Application Name' field, enter 'Post SMTP'. For 'Application Type', choose 'Web Application'.
- In 'Home Page URL', enter the 'Home Page URL' given by Post.
- In 'Callback Domain', enter the 'Callback Domain' given by Post.
- Under 'API Permissions', choose 'Mail.' Under 'Mail' choose 'Read/Write'
- Click 'Create App'
- Enter the Client ID and Client Secret displayed here into the Post's settings page.
How can I revoke Post's OAuth 2.0 access?
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If you have a Google Account from the Google Developer's Console, use the Delete button under the Client ID.
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If you have a Microsoft Live account, from the Microsoft account Developer Center, select the Application and choose Delete Application.
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If you have a Yahoo Account, from the Yahoo Developer Network My Apps, select the Application and choose Delete App.
How can I report security bugs?
You can report security bugs through the Patchstack Vulnerability Disclosure Program. The Patchstack team helps validate, triage, and handle any security vulnerabilities. Report a security vulnerability.
Screenshots
- WordPress Post SMTP Dashboard - To access all the Post SMTP functionality at a glance.
- Post SMTP New Setup Wizard (Step-01) - Choose your SMTP mailer
- Post SMTP New Setup Wizard (Step -02) - Configure your mailer settings
- Post New Setup Wizard (Step -03) - Send test email
- Detailed Email Logs - View failed and successfully sent emails, resend, preview, and analyze error details
- Post SMTP Mobile App Screen - Scan the QR code from the mobile app and connect it to track your WordPress emails.
- Post SMTP Settings - Set email failure alerts on Microsoft Teams, Slack, Admin Email, Twilio, and Chrome extension
Upgrade Notice
2.8.11
Important: If you are using version 2.8.7 or lower of our plugin, please update to the latest version as soon as possible. This update contains an urgent security fix that prevents potential vulnerabilities and attacks. We apologize for any inconvenience this may cause you and we appreciate your cooperation. Thank you for using our plugin.
Install
composer require meteorgpl-plugin/post-smtpThe vendor’s license checks are intact: activate the plugin in WordPress with a license key bought from the vendor.
License
The plugin declares no license. The code is redistributed under the license the vendor declared in the plugin’s own headers.
Artwork, fonts, media and documents that may be licensed separately are not redistributed; the licensing page explains what is replaced or removed, and the security tab lists it per version. Support and update entitlement come with the license you buy from the vendor.