Post SMTP review (2026): is the free plan enough?
WordPress SMTP plugin with email logs, alerts and backup mailers
Black Friday: is there a Post SMTP sale?
Post SMTP report card
Good · out of 4.0 · graded Nov 13, 2026
Best for a WordPress mail plugin with logs and a phone app
Post SMTP is a WordPress plugin that connects your site to a mail provider, and the free version includes email logs, failure alerts and a fallback connection. Gmail and Microsoft 365 one-click setup, SES and auto-resend are Pro, and Pro's price couldn't be read.
Who Post SMTP is for
- Fits if you run WordPress and want failed-email alerts on your phone
- Works for sites that need a backup SMTP connection without paying
Who Post SMTP is not for
- Skip it if you don't run WordPress, as it only works inside it
- Tight if you stay on free: one-click Gmail and Microsoft 365, Amazon SES, Zoho and auto-resend are Pro
- Watch out: Pro pricing couldn't be read, as the vendor's site showed a maintenance page
- Watch out: it needs an account with a separate mailer
Why Post SMTP gets a 2.6
Five grades, each with its reason. The GPA is their average: an A is 4 points, an F is none.
- BValue for moneyThe free plugin covers logs, alerts and a backup connection. Pro pricing couldn't be read, because the vendor's own site showed a maintenance page on 13 November 2026.
- BFree plan and trialFree plugin on WordPress.org with a setup wizard, email logs, failure alerts, a fallback mailer and mailers such as SMTP.com, Brevo and Mailgun.
- CFeaturesSetup wizard, logs, alerts, fallback, DNS checks and a mobile app. One-click Gmail and Microsoft 365 setup, Amazon SES, Zoho, auto-resend and batching are Pro.
- CEase of useNo store rating on record. You install it in WordPress and connect a mail provider.
- BPlatforms and integrationsRuns inside WordPress, with an iOS and Android app, and connects to Gmail, Microsoft 365, SES, Brevo, Mailgun, SendGrid, Postmark and Slack.
What these grades rest on. Graded from this listing, whose facts were read from Post SMTP's own pages on 13 November 2026. Not based on using the product, and shorter than our full reviews. How we review and grade.
Make Post SMTP? Put this grade on your site
Paste this where you want the badge. It links here and follows the grade if it changes. About badges
<a href="https://toolgpa.com/tools/post-smtp#review"><img src="https://toolgpa.com/badge/post-smtp.svg" alt="Post SMTP: 2.6 GPA on ToolGPA" width="196" height="56"></a>Where Post SMTP stands among email sending services
Post SMTP's GPA of 2.6 is higher than 34 of the 50 other email sending services we grade, and level with 11.
It stands best on free plan and trial (B, above 35 of 50) and worst on features (C, above 0).
Each grade against the category
Every bar is all 51 email sending services we grade, cut by the letter each got. Post SMTP’s own letter is outlined.
- BValue for moneyAbove 25 of 50, level with 18
- BFree plan and trialAbove 35 of 50, level with 13
- CFeaturesAbove 0 of 50, level with 29
- CEase of useAbove 7 of 50, level with 43
- BPlatforms and integrationsAbove 17 of 50, level with 32
Keep Post SMTP, or make your own?
Keep it
To replace Post SMTP you would be making mail servers with a good name among inbox providers. That is not a weekend's work, with an AI app builder or without one.
It is one of the better ones too: its GPA of 2.6 is higher than 34 of the 50 other email sending services we grade.
What you could make
- Reports: an app builder makes this well.
What you could not
- Mail servers with a good name among inbox providers.
- A real app for iOS and Android. Something home-made would be a web page.
- It plugs into other products, Gmail, Microsoft 365 and Amazon SES among them.
What this rests on. Post SMTP’s listing: what it does, where it runs, what it plugs into and what it costs. It is a judgement about the kind of software this is. We have not built a replacement for it, and making your own means looking after it too. How we decide, and every tool’s verdict.
What is Post SMTP?
Post SMTP is a WordPress plugin that replaces the default PHP mail function with a connection to an SMTP or API mailer such as Gmail, Microsoft 365, Amazon SES, Brevo, Mailgun or SendGrid. It adds email logs, failure alerts, a fallback connection and a mobile app, with extra features in a paid Pro edition.
Worth knowing
- Runs only inside WordPress and needs an account with a separate mailer.
- The plugin listing marks Microsoft 365 and Gmail one-click setup, Amazon SES, Zoho Mail, auto-resend of failed emails and email batching as Pro features.
- Pro pricing could not be read: the vendor's own site, postmansmtp.com, showed a maintenance page on 2026-11-13.
Key features
- Setup wizard
- A three-step wizard configures a mailer using API keys, with a one-click setup for Gmail and Microsoft 365 listed as Pro features.
- Email logs
- Lists sent and failed emails with their status and error messages, and can be filtered.
- Failure alerts
- Alerts by email, Slack, SMS through Twilio or push notification when an email fails to deliver.
- Fallback mailer
- A backup SMTP connection sends email when the main mailer is unavailable.
- Mobile app
- A companion app shows email status and failure alerts on a phone; resending and multi-site monitoring are Pro.
- DNS record checks
- A spam score checker looks at a domain's SPF, DKIM and DMARC records.
Post SMTP pricing
As of Nov 13, 2026, Post SMTP has a free plan.
- Starts at
- Not published
- Free plan
- Free plugin on WordPress.org with a setup wizard, email logs, failure alerts, fallback mailer and mailers such as SMTP.com, Brevo and Mailgun.
- Free trial
- None listed
| Plan | Price | What you get |
|---|---|---|
| Free | $0 | Free plugin from WordPress.org: setup wizard, email logs, reports, failure alerts and a backup SMTP connection. |
Read from wordpress.org on Nov 13, 2026. Prices change, so confirm with Post SMTP before you buy.
Works with
Post SMTP alternatives
- Post SMTP vs WP Mail SMTP
Free plan · from $99/yr
- Post SMTP vs SendLayer
Free trial · from $5/mo
- Post SMTP vs SMTP.com
From $25/mo
Common questions
Does Post SMTP have a Windows app?
No Windows app was listed when its pages were read on Nov 13, 2026. Post SMTP is listed for Web, iOS and Android.
Does Post SMTP have a macOS app?
No macOS app was listed when its pages were read on Nov 13, 2026. Post SMTP is listed for Web, iOS and Android.
Is Post SMTP open source?
Post SMTP is not described as open source on its own site, as read on Nov 13, 2026.
Sources for this page
The prices, plans, platforms and features above were read from these pages on Nov 13, 2026.