EffectIO Post SMTP 3.9.5

$9.99

Drop-in compatible replacement & Licensed Product

Post SMTP is a WordPress SMTP plugin that improves email delivery with 20+ mailer integrations, email logs, failure alerts, backup mailers, and a mobile app. Post SMTP is a WordPress SMTP plugin that improves email delivery with SMTP integrations, email logging, failure alerts, and automatic resending of failed emails.

Released on: 2026-10-21

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Description:

Post SMTP is a plugin designed to improve email delivery for WordPress sites by connecting your site to leading SMTP mailers. It allows users to effortlessly link their WordPress site with services such as Gmail, Microsoft 365, Amazon SES, SendGrid, and Zoho Mail. The plugin tracks every WordPress email, providing full details including delivery status, subject, recipient, error messages, and attachments. This system ensures that your transactional emails are delivered reliably and provides comprehensive data on your email sending performance.

The setup process is designed to be straightforward, requiring only three simple steps: choosing your mailer, entering the necessary sender details and credentials or API keys, and sending a test email to verify the setup. For secure integration, the plugin supports OAuth 2.0 authentication, which allows you to connect services like Microsoft 365 and Gmail using API-based authentication without needing to store sensitive SMTP credentials. Users can also configure a backup SMTP mailer, ensuring that emails are delivered even if the primary mailer experiences a failure.

The plugin offers comprehensive email logging and reporting capabilities. Detailed email logs track the status of each email, allowing users to filter and search logs by date, recipient, or status. You can also resend failed emails directly from the log screen and export these logs to a CSV file for analysis. Furthermore, the Email Health Report provides daily, weekly, or monthly reports that show sent, delivered, failed, and opened emails, along with performance charts to help improve engagement.

To keep users informed about delivery issues, Post SMTP offers multiple email failure alert options. Notifications can be received via email, Slack, SMS through Twilio, Microsoft Teams, or the dedicated mobile app. The mobile application allows users to monitor email status and performance in real time, view detailed error logs, and resend failed emails from anywhere. Additionally, the service provides on-demand expert assistance, including complete SMTP configuration and DNS record setup like SPF, DKIM, and DMARC.

The vendor’s own page for Post SMTP has the full details.

Main Features of Post SMTP:

  • ['Connects with 20+ SMTP services including Gmail, Microsoft 365, Amazon SES, Mailgun, SendGrid, Brevo, Postmark, Zoho Mail, and SMTP2Go', 'Quick 3-step setup: choose your mailer, add sending details and API keys, then send a test email', 'OAuth 2.0 authentication for API-based connections without storing SMTP credentials', 'Detailed email logs with delivery status, subject, recipient, error messages, attachments, CSV export, and resending of failed emails', 'Email failure alerts via admin email, Slack, Microsoft Teams, Twilio SMS, webhooks, Chrome extension, and the mobile app', 'Backup SMTP mailer so transactional emails are delivered even if the primary SMTP fails', 'Auto-retry failed emails with configurable retry limits and daily, weekly, or monthly email health reports']

EffectIO members receive updates through the managed update channel. Install the EffectIO Connect plugin on your site and it handles activation, updates and licensing automatically.

Need a dashboard view of all your EffectIO assets? The EffectIO Dashboard shows what is installed, what is licensed, and what has an update available.

The 3.9.5 version stays on this update channel for the subscription year.

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Post SMTP is a WordPress SMTP plugin that improves email delivery with SMTP integrations, email logging, failure alerts, and automatic resending of failed emails.

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