# Post SMTP review (2026): is the free plan enough? > WordPress SMTP plugin with email logs, alerts and backup mailers Checked Nov 13, 2026 ยท graded Nov 13, 2026 by ToolGPA. 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. - **Category:** Email Sending Services - **Made by:** Saad Iqbal - **Website:** https://postmansmtp.com - **Runs on:** Web, iOS, Android - **Who should skip it:** Skip it if you don't run WordPress, as it only works inside it. - **Facts last checked:** Nov 13, 2026 ## Pricing As of Nov 13, 2026, Post SMTP has a free plan. - **Pricing model:** Free plan - **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 https://wordpress.org/plugins/post-smtp/ on Nov 13, 2026. Prices change, so confirm with Post SMTP before buying. ## 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. ## Good for - WordPress sites that need to see which emails failed and why - Site owners who want alerts on a phone or in Slack - Agencies that need to manage many sites through MainWP ## 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. ## ToolGPA grades **GPA: 2.6 out of 4**, graded Nov 13, 2026. 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. - **Value for money: B.** The 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. - **Free plan and trial: B.** Free plugin on WordPress.org with a setup wizard, email logs, failure alerts, a fallback mailer and mailers such as SMTP.com, Brevo and Mailgun. - **Features: C.** Setup 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. - **Ease of use: C.** No store rating on record. You install it in WordPress and connect a mail provider. - **Platforms and integrations: B.** Runs inside WordPress, with an iOS and Android app, and connects to Gmail, Microsoft 365, SES, Brevo, Mailgun, SendGrid, Postmark and Slack. These are ToolGPA's own grades. 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. ## Where it 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). The category's chart of price against score: https://toolgpa.com/charts/email-sending ## Keep it, 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. - You could make: Reports: an app builder makes this well. - You could not: Mail servers with a good name among inbox providers. - You could not: A real app for iOS and Android. Something home-made would be a web page. - You could not: It plugs into other products, Gmail, Microsoft 365 and Amazon SES among them. A judgement by ToolGPA from this listing, by rules that are the same for every tool. Nothing was built to test it. ## Works with Gmail, Microsoft 365, Amazon SES, Brevo, Mailgun, SendGrid, Postmark, Slack **Tags:** Transactional email, Reports ## Alternatives - [WP Mail SMTP](https://toolgpa.com/tools/wp-mail-smtp): WordPress plugin that routes site email through an SMTP provider. [Compare](https://toolgpa.com/compare/post-smtp-vs-wp-mail-smtp) - [FluentSMTP](https://toolgpa.com/tools/fluentsmtp): Free WordPress plugin for sending site email through your provider. [Compare](https://toolgpa.com/compare/fluentsmtp-vs-post-smtp) - [SendLayer](https://toolgpa.com/tools/sendlayer): Transactional email over SMTP or API, aimed at WordPress sites. [Compare](https://toolgpa.com/compare/post-smtp-vs-sendlayer) - [SMTP.com](https://toolgpa.com/tools/smtp-com): SMTP relay and email API sold in monthly volume plans from 50,000. [Compare](https://toolgpa.com/compare/post-smtp-vs-smtp-com) ## Sources The prices, plans, platforms and features above were read from these pages on Nov 13, 2026: - https://wordpress.org/plugins/post-smtp/ Page: https://toolgpa.com/tools/post-smtp Listed by ToolGPA (toolgpa.com).