Post SMTP
by Post SMTP
SMTP delivery with a detailed email log, failure alerts and a mobile app for delivery notifications.
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What Post SMTP does
SMTP delivery with a detailed email log, failure alerts and a mobile app for delivery notifications.
It sits in the email delivery part of a WordPress stack and is sold by Post SMTP on a freemium basis. We recommend it in our email delivery guides because it does that one job well without asking you to rebuild the rest of the site around it.
Every plugin adds work to a page request, so treat this as a decision with a cost. Record a speed test before you install it and run the same test afterwards, on the same page, so you know exactly what it charged you.
Real user ratings
Score
4.7/5
Reviews
525
Active installs
300,000+
Downloads
20.2M
Latest version
4.0.1
Last updated
2026-08-25
These figures come straight from the public WordPress.org plugin directory API for version 4.0.1, not from us. Check them yourself on the WordPress.org listing. Our own editorial score is 4.6/5.
Where Post SMTP ranks elsewhere
Post SMTP does not appear in the published "best of" lists we track from WPBeginner, TechRadar, Kinsta, Themeisle and similar sites. That is not a mark against it - those roundups are short and skew towards the biggest names.
What changed in the latest version
- Rolled back from 4.0.0-beta.1
- NEW - Added SMTP.com as an email service provider.
- NEW - Added CloudFlare as an email service provider.
- IMPROVEMENT - Updated Sweego API.
- IMPROVEMENT - Verified compatibility with WordPress v 7.1.
- FIX - Resolved issue where newsletter emails were rendered incorrectly via Microsoft 365 API.
- FIX - Fixed critical error when sending Wordfence Admin Authentication emails.
- FIX - Resolved PHP 8.3 depreciation warnings.
- FIX - Fixed fatal error occurring on the configuration page for version 3.7.0.
- TWEAK - Updated dashboard banners and removed the Extensions screen from the plugin menu.
Release notes are the developer's own words, published on WordPress.org. Read the full changelog
Pros and cons
- Strong logging and failure alerting
- A free tier you can trial before paying
- Actively maintained and used on production sites we test
- Interface feels dated in places
- The features most sites need sit in the paid tier
How to use it
- 1Choose a sending provider and verify your sending domain.
- 2Add SPF, DKIM and DMARC records at your DNS host.
- 3Connect the plugin with an API key rather than a password where possible.
- 4Send a test email and check the headers for a pass on all three records.
- 5Enable logging so you can prove delivery later.
How it compares
Other email delivery plugins we recommend, with their rating and pricing model.
| Plugin | Our rating | WordPress.org | Pricing | Best for |
|---|---|---|---|---|
| Post SMTP | 4.6 | 4.7 (525) | Freemium | Strong logging and failure alerting |
| Easy WP SMTP | 4.5 | 4.6 (707) | Freemium | Fast, minimal setup |
| FluentSMTP | 4.8 | 4.8 (404) | Free | Logging and multi-provider routing at no cost |
| Gmail SMTP | 4.4 | 4.1 (103) | Free | Free for low-volume Google users |
| WP Mail SMTP | 4.8 | 4.8 (5,191) | Freemium | Most provider integrations, clear setup wizard |
Guides that cover Post SMTP
Alternatives
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Easy WP SMTP
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