Post SMTP vs SureMail (September 2026)
Updated September 7, 2026 · Data from WordPress.org, refreshed daily · How this works
Both rank in the WordPress.org Email Plugins top 10: Post SMTP at #3 and SureMail at #7. Post SMTP leads on 4 of the 5 measures we track. Every number below comes straight from WordPress.org and is refreshed every day.
Post SMTP
Post SMTP – Complete Email Deliverability and SMTP Solution with Email Logs, Alerts, Backup SMTP & Mobile App
Improve WordPress email deliverability. Connect Gmail SMTP, Microsoft 365, Brevo, SendGrid, Mailgun, Zoho, Amazon SES, etc. #1 WordPress SMTP Plugin.
SureMail
SureMail – SMTP and Email Logs Plugin with Amazon SES, Postmark, and Other Providers
SureMail – SMTP and Email Logs Plugin with Amazon SES, Postmark, and Other Providers
Who leads on what
Post SMTP leads on 4 of the 5 measures we track.
Post SMTP ranks higher on WordPress.org: #3 against #7 in Email Plugins.
Post SMTP has more users: 300,000+ active installs against 200,000+.
Not enough reviews to compare ratings fairly: Post SMTP has 525, SureMail has 24. We compare ratings only above 50 reviews each.
Post SMTP has more reviews behind its score: 525 against 24.
Post SMTP was updated more recently, on August 25, 2026; SureMail on August 20, 2026.
Which one to pick
Each plugin is the better answer for the measure it actually leads on. Nothing here is a recommendation we invented.
Post SMTP
Pick Post SMTP if you go by where WordPress.org itself puts them, you want the plugin more sites already run, you want the score backed by more reviews or you want the one shipping releases most recently.
SureMail
SureMail does not lead on any measure we track, so pick it only for something these numbers cannot show, such as a feature you need.
Post SMTP vs SureMail side by side
| Post SMTP | SureMail | |
|---|---|---|
| Email Plugins ranking | #3 | #7 |
| Rating | 4.7 | 4.7 |
| Reviews | 525 | 24 |
| Active installs | 300,000+ | 200,000+ |
| Total downloads | 20,136,080 | 1,684,247 |
| Downloads, last 30 days | – | – |
| Last updated | Aug 25, 2026 | Aug 20, 2026 |
| First published | Oct 15, 2017 | Jan 22, 2025 |
| Tested up to WordPress | 7.0.4 | 7.1 |
| Requires PHP | 7.1 | 7.4 |
| Pricing | Free + paid version | Free on WordPress.org |
30-day download figures appear after both plugins have 30 days of tracking.
Post SMTP ratings
SureMail 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 Post SMTP nor SureMail can pay to appear here: the pair exists only because both plugins reached the Email Plugins top 10. Full methodology.
Post SMTP vs SureMail: common questions
Is Post SMTP better than SureMail?
Post SMTP leads on 4 of the 5 measures we track. Neither is better at everything, and the answer depends on which measure you weigh. Post SMTP ranks higher on WordPress.org: #3 against #7 in Email Plugins.
Which has more users, Post SMTP or SureMail?
Post SMTP ranks higher on WordPress.org: #3 against #7 in Email Plugins.
Which is rated higher, Post SMTP or SureMail?
Post SMTP has more users: 300,000+ active installs against 200,000+.
Are Post SMTP and SureMail free?
Both are free to install from WordPress.org. Post SMTP is listed as commercial, so a paid version or add-ons exist. SureMail may also sell a paid version or add-ons.
Alternatives to Post SMTP and SureMail
Plugins that score close to both in the same WordPress.org rankings and tags.
More Email Plugins comparisons
- Easy WP SMTP vs Post SMTP
- Easy WP SMTP vs SureMail
- FluentSMTP vs Post SMTP
- FluentSMTP vs SureMail
- GoSMTP vs Post SMTP
- GoSMTP vs SureMail
- Post SMTP vs Email Deliverability
- Post SMTP vs SMTP Mailer
- Post SMTP vs WP Mail Logging
- Post SMTP vs WP Mail SMTP
- Post SMTP vs Solid Mail
- Email Deliverability vs SureMail
Weekly · free
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.