WordPress pluginwhat they sayPost 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.
01Revenue
Post SMTP has a paid tier, but the listing publishes no price. Without one, any revenue figure would rest on a guessed price, so MRRLens shows none and leaves revenue out of its opportunity score.
Exploratory math, not an estimate: if it charged a typical price for its marketplace, active users × paid conversion × monthly price would give $12k–60k a month. Assumptions: active users: 300k; 0.5%–2.5% of active users pay; no public price: assumed $8.00/month, typical for this marketplace. Methodology.
3 daily snapshots · growth 30 d: —
Store data from the WordPress.org listing, refreshed daily. Updated 8 h ago. Listed since 2017.
02Why users leave Post SMTP
Updates caused database rebuild errors requiring rollback; Office 365 addon tests failed; HTML emails sent as plain text after update.
“After the update, there was an error prompting me to rebuild the database; nothing could be done, so I had to roll back.” source ↗
Sample: 10 recent complaints (1–3★ reviews) · clustered Oct 29, 2026 · complaints from Jan 2020–Aug 2026, 50% in the last 24 months · each review labelled by a model, quotes verbatim
03How to build a better Post SMTP
04Who wants a better Post SMTP
0 buyer threads in the last 30 days name Post SMTP, and 1 more is in the same market.
05Questions about Post SMTP
How much revenue does Post SMTP make?
MRRLens shows no revenue figure for Post SMTP. It sells a paid tier but does not publish the price, and an estimate built on an assumed price would be a guess. The exploratory math is on the page, labelled as such.
What do users complain about most in Post SMTP?
Across 10 recent complaints, the most common is bugs/reliability (50%). Updates caused database rebuild errors requiring rollback; Office 365 addon tests failed; HTML emails sent as plain text after update.
What are the best Post SMTP alternatives?
The closest alternatives MRRLens found are WP Mail SMTP by WPForms, FluentSMTP and Easy WP SMTP. The full list, with why users leave, is on the Post SMTP alternatives page.
How many people use Post SMTP?
Post SMTP lists 300k+ active installs on WordPress.org, rated 4.7 (528).
Full 1-star breakdown with verbatim quotes, the build blueprint and every live thread — on every product.