FluentSMTP vs Post SMTP (October 2026)
Updated October 23, 2026 · Data from WordPress.org, refreshed daily · How this works
Both rank in the WordPress.org Email Plugins top 10: FluentSMTP at #2 and Post SMTP at #3. FluentSMTP leads on 5 of the 6 measures we track. Every number below comes straight from WordPress.org and is refreshed every day.
FluentSMTP
FluentSMTP – WP Mail SMTP Plugin with Amazon SES, SendGrid, Mailgun, Postmark, Cloudflare, toSend, Gmail and Any SMTP
Free WP Mail SMTP plugin. Fix WordPress email deliverability with Gmail, Amazon SES, SendGrid, Mailgun, Postmark, Cloudflare, Brevo or any SMTP.
Post SMTP
Post SMTP – Complete Email Delivery and SMTP Solution with Email Logs, Alerts, Backup SMTP & Mobile App
Install Post SMTP (WordPress SMTP Plugin) to fix WordPress email delivery. Connect Gmail SMTP, Microsoft 365, Brevo, SendGrid, Zoho, Amazon SES, etc.
Who leads on what
FluentSMTP leads on 5 of the 6 measures we track.
FluentSMTP ranks higher on WordPress.org: #2 against #3 in Email Plugins.
FluentSMTP has more users: 700,000+ active installs against 300,000+.
FluentSMTP is rated higher: 4.8 out of 5 from 407 reviews, against 4.7 from 528 reviews.
Post SMTP has more reviews behind its score: 528 against 407.
FluentSMTP was updated more recently, on September 27, 2026; Post SMTP on September 24, 2026.
FluentSMTP was downloaded more in the last 30 days: 476,481 times against 263,111.
Which one to pick
Each plugin is the better answer for the measure it actually leads on. Nothing here is a recommendation we invented.
FluentSMTP
Pick FluentSMTP if you go by where WordPress.org itself puts them, you want the plugin more sites already run, the review score matters most to you, you want the one shipping releases most recently or you want the one being installed faster right now.
Post SMTP
Pick Post SMTP if you want the score backed by more reviews.
FluentSMTP vs Post SMTP side by side
| FluentSMTP | Post SMTP | |
|---|---|---|
| Email Plugins ranking | #2 | #3 |
| Rating | 4.8 | 4.7 |
| Reviews | 407 | 528 |
| Active installs | 700,000+ | 300,000+ |
| Total downloads | 5,792,103 | 20,451,859 |
| Downloads, last 30 days | 476,481 | 263,111 |
| Last updated | Sep 27, 2026 | Sep 24, 2026 |
| First published | Jan 18, 2021 | Oct 15, 2017 |
| Tested up to WordPress | 7.1.3 | 7.1.3 |
| Requires PHP | 7.4 | 7.1 |
| Pricing | Free | Free + paid version |
Downloads per day, last 48 days
FluentSMTP ratings
Post SMTP ratings
How we compare these two
Every figure here is pulled from the WordPress.org plugin API every day at 03:00 UTC, for both plugins in the same run, so the two are always read on the same day. We compare only what the directory reports: active installs, the rating and how many reviews stand behind it, the last release date and, once we have a month of history, downloads over the last 30 days. Ratings are only called a win above 50 reviews each, because a handful of five-star reviews is not evidence. Nothing is weighted into an overall score, no measure is worth more than another, and neither FluentSMTP nor Post SMTP can pay to appear here: the pair exists only because both plugins reached the Email Plugins top 10. Full methodology.
FluentSMTP vs Post SMTP: common questions
Is FluentSMTP better than Post SMTP?
FluentSMTP leads on 5 of the 6 measures we track. Neither is better at everything, and the answer depends on which measure you weigh. FluentSMTP ranks higher on WordPress.org: #2 against #3 in Email Plugins.
Which has more users, FluentSMTP or Post SMTP?
FluentSMTP ranks higher on WordPress.org: #2 against #3 in Email Plugins.
Which is rated higher, FluentSMTP or Post SMTP?
FluentSMTP has more users: 700,000+ active installs against 300,000+.
Are FluentSMTP and Post SMTP free?
Both are free to install from WordPress.org. FluentSMTP is a community plugin with no paid version. Post SMTP is listed as commercial, so a paid version or add-ons exist.
Alternatives to FluentSMTP and Post SMTP
Plugins that score close to both in the same WordPress.org rankings and tags.
More Email Plugins comparisons
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- FluentSMTP vs WP Mail Logging
- FluentSMTP vs WP Mail SMTP
- FluentSMTP vs Solid Mail
- GoSMTP vs Post SMTP
- Post SMTP vs Email Deliverability
- Post SMTP vs SMTP Mailer
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What moved this week
One email a week, built from the same daily snapshots these rankings come from: the plugins that climbed, what launched, and one ranking worth a look.