Magento 2 SMTP Extension

The Towering Media Magento 2 SMTP Extension allows Magento stores to send transactional emails through authenticated SMTP providers instead of relying solely on the server's default mail transport. It supports order confirmations, invoices, shipping notifications, password resets, and other Magento-generated emails.

Go to Stores → Configuration → Toweringmedia → SMTP Email Settings to configure SMTP providers, authentication, encryption, and test emails. To review outgoing email history, open Toweringmedia → SMTP → Sent Emails. Detailed connection and error information is available under Toweringmedia → SMTP → Debug Logs.

The extension supports Gmail, Google Workspace, Microsoft Office 365, SendGrid, Amazon SES, and custom SMTP servers. Administrators can select a supported provider preset or manually configure the SMTP hostname, port, authentication method, username, password, and connection security.

Yes. The extension supports Google OAuth 2.0 (XOAUTH2) for Gmail and Google Workspace, along with Microsoft OAuth integration for supported Microsoft email workflows. Traditional SMTP authentication methods, including Login, Plain, and CRAM-MD5, are also available. OAuth configuration requires appropriate provider application credentials and authorization.

Yes. Navigate to Stores → Configuration → Toweringmedia → SMTP Email Settings, enter an email address in the Send Test E-mail To field, and click Send Test Email. This helps verify SMTP connectivity, authentication, and message submission before using the configuration for customer emails.

Yes. When email logging is enabled, the extension records outgoing messages with details such as recipients, subjects, timestamps, sending status, and email content. Administrators can also enable debug logging to investigate SMTP connection failures, authentication errors, and transport problems. A successful sending status does not guarantee inbox delivery.

Yes. The extension includes configurable retention settings for sent email logs and debug logs. Magento cron processes automatic log cleanup based on the configured retention periods. Setting a retention value to 0 disables automatic cleanup for that log type.

Yes. The extension provides options to disable outgoing email delivery or restrict recipients using a domain allowlist. You can specify approved email domains for development and staging environments and optionally redirect blocked messages to a designated address. An email blacklist is also available to block specific recipients.

Yes. The extension supports administrator alerts for specific Google and Microsoft OAuth failures, including revoked or invalid credentials and token refresh problems. Alerts can be sent through PHP sendmail independently of the affected OAuth SMTP connection. Optional Twilio SMS notifications require the corresponding React Checkout Pro Phone Verification configuration. Alert throttling helps prevent repeated notifications.

Yes. The extension operates primarily at the Magento email transport and administration level, so it does not require a separate Hyvä compatibility module. It works independently of Hyvä and Luma storefront themes. The current Composer package permits PHP 8.1 through 8.5, subject to the installed Magento version and dependency compatibility. Toweringmedia Base and the required Magento components must also be installed.