by Saad Iqbal 4.7 (528 reviews)

Post SMTP – Complete Email Delivery and SMTP Solution with Email Logs, Alerts, Backup SMTP & Mobile App

Name: Post SMTP – Complete Email Delivery and SMTP Solution with Email Logs, Alerts, Backup SMTP & Mobile App
Rating: 4.7 (528 reviews)
Author: Saad Iqbal

Install Post SMTP (WordPress SMTP Plugin) to fix WordPress email delivery. Connect Gmail SMTP, Microsoft 365, Brevo, SendGrid, Zoho, Amazon SES, etc.

Post SMTP ranks #162 among WordPress.org plugins with 300,000+ active installations, is #16 of 3,634 in the Communication category, a 4.7/5 rating from 528 reviews, and was last updated Sep 24, 2026. Data from WordPress.org, refreshed twice daily — see methodology.

Compatible with WP 7.1

v4.0.2 Current Version v4.0.2

Updated 1 month ago Last Update on 24 Sep, 2026

Refreshed 2 days ago Last Refreshed on

#16 of 3,634 in Communication Top 1% by installs Downloads -34.5% this week

View on WordPress.org

Rank

#162

— No change

Active Installs

300K+

-22.6%

KW Avg Position

2.6

— No change

Downloads

18.8M

+311 today

Support Resolved

64%

— No change

Rating

94%

Review 4.7 out of 5

4.7 (528 reviews)

Next Milestone 400K

Total Progress 84.4%

300K+ 400K+

Ranks to Climb

Growth Needed

8,000,000

Active Installs

Pro

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Rank Changes

Current #162

Change

Best #

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Active Installs Growth

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Active Installs 0,000,000+

Growth +0.0%

Peak 0,000,000

Downloads Growth

Downloads

Growth

Peak

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Reviews & Ratings

4.7

528 reviews

Overall 94%

478 (91%)

6 (1%)

3 (1%)

35 (7%)

Support Threads Overview

Resolved

Unresolved

Total Threads

Resolved

Unresolved

64%

Resolution Rate

Security History

Source: WPVulnerability

37 known vulnerabilities on record · 15 in the last 24 months · checked 1 week ago

Aug 26, 2026

Post SMTP – Complete Email Delivery and SMTP Solution with Email Logs, Alerts, Backup SMTP & Mobile App [post-smtp] < 4.0.2

CVE-2026-75962 · Fixed in v4.0.2
May 28, 2026

Post SMTP – Complete Email Delivery and SMTP Solution with Email Logs, Alerts, Backup SMTP & Mobile App [post-smtp] < 4.0.1

CVE-2026-81278 · Fixed in v4.0.1
Apr 30, 2026

Post SMTP – Complete Email Delivery and SMTP Solution with Email Logs, Alerts, Backup SMTP & Mobile App [post-smtp] < 3.6.3

CVE-2026-48838 · Fixed in v3.6.3
Apr 30, 2026

Post SMTP – Complete Email Delivery and SMTP Solution with Email Logs, Alerts, Backup SMTP & Mobile App [post-smtp] < 3.1.0

CVE-2024-13362 · Fixed in v3.1.0
Mar 17, 2026

Post SMTP – Complete Email Delivery and SMTP Solution with Email Logs, Alerts, Backup SMTP & Mobile App [post-smtp] < 3.9.0

CVE-2026-3090 · Fixed in v3.9.0
Mar 17, 2026

Post SMTP – Complete Email Delivery and SMTP Solution with Email Logs, Alerts, Backup SMTP & Mobile App [post-smtp] < 3.9.0

CVE-2026-2559 · Fixed in v3.9.0
Dec 9, 2025

Post SMTP – Complete Email Delivery and SMTP Solution with Email Logs, Alerts, Backup SMTP & Mobile App [post-smtp] < 3.6.2

CVE-2025-67563 · Fixed in v3.6.2
Dec 3, 2025

Post SMTP – Complete Email Delivery and SMTP Solution with Email Logs, Alerts, Backup SMTP & Mobile App [post-smtp] < 3.6.2

CVE-2025-12887 · Fixed in v3.6.2
Oct 31, 2025

Post SMTP – Complete Email Delivery and SMTP Solution with Email Logs, Alerts, Backup SMTP & Mobile App [post-smtp] < 3.6.1

CVE-2025-11833 · Fixed in v3.6.1
Sep 2, 2025

Post SMTP – Complete Email Delivery and SMTP Solution with Email Logs, Alerts, Backup SMTP & Mobile App [post-smtp] < 3.4.2

CVE-2025-9219 · Fixed in v3.4.2

Showing the 10 most recent of 37 records.

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Plugin Details

Version: 4.0.2
Last Updated: Sep 24, 2026
Requires WP: 5.6.0+
Tested Up To: 7.1
PHP Version: 7.1 or higher
Author: Saad Iqbal

Support & Rating

Rating: ★ ★ ★ ★ ★ 4.7
Reviews: 528
Support Threads: 14
Resolved: 64%

Keywords

email logs gmail smtp office 365 smtp wordpress smtp

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TL;DR

AI summary of the plugin's readme

This plugin is for WordPress site owners who need reliable email delivery through SMTP providers like Gmail, Microsoft 365, Brevo, and Amazon SES. It solves the problem of WordPress emails failing to send or landing in spam by replacing the default PHP mail function with authenticated SMTP connections and providing logs, alerts, and monitoring tools.

3-step SMTP setup wizard
Detailed email logs
SPF, DKIM & DMARC checks
Post SMTP mobile app
Fallback/backup SMTP mailer
OAuth 2.0 authentication
Instant failure notifications
Weekly email summary report

Frequently Asked Questions

Common questions about Post SMTP – Complete Email Delivery and SMTP Solution with Email Logs, Alerts, Backup SMTP & Mobile App

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.

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.

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.

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.

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.

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.

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’.

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.

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.

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.