How to Set up and Configure Postman SMTP on WordPress?

Email communication is a vital aspect of running a successful WordPress website, whether it’s for sending notifications, newsletters, or transactional emails. However, configuring email settings can be a daunting task, especially when dealing with issues such as deliverability and security. Postman SMTP, a popular WordPress plugin, simplifies the process by allowing you to send emails through an external SMTP server.

In this guide, we’ll walk you through the steps to set up and configure Postman SMTP on your WordPress website, ensuring reliable email delivery and enhancing your communication capabilities.

Understanding SMTP and Its Importance

SMTP (Simple Mail Transfer Protocol) is a communication protocol used to send email messages between servers. By configuring your WordPress website to use an SMTP server, you can ensure reliable email delivery, improve deliverability rates, and mitigate the risk of emails being marked as spam.

Read: How To Backup Your WordPress Website Before Migrating

Installing the Postman SMTP Plugin

Begin by installing and activating the Postman SMTP plugin on your WordPress website. You can find the plugin by navigating to the Plugins section in your WordPress dashboard and searching for “Postman SMTP.” Install and activate the plugin, then proceed to the configuration steps.

Setting Up Postman SMTP

Once the plugin is activated, navigate to the Postman SMTP settings page located in the WordPress dashboard. Begin the setup process by entering your email address and selecting the mailer option (SMTP or OAuth 2.0). Enter the SMTP server details provided by your email service provider, including the host, port, encryption method, and authentication credentials.

Configuring Advanced Settings

Postman SMTP offers advanced configuration options to fine-tune your email settings and optimize deliverability. Customize settings such as timeout periods, connection retry intervals, and message format to meet your specific requirements. Enable features such as email logging and debugging to monitor email activity and troubleshoot issues effectively.

Testing Email Delivery

Once you’ve configured Postman SMTP settings, it’s essential to test email delivery to ensure everything is set up correctly. Use the built-in email testing feature provided by Postman SMTP to send a test email to your desired recipient. Verify that the test email is delivered successfully and check for any errors or issues that may arise during the testing process.

Configuring SPF and DKIM Records

To improve email deliverability and enhance security, consider configuring SPF (Sender Policy Framework) and DKIM (DomainKeys Identified Mail) records for your domain. These records help verify the authenticity of outgoing emails and reduce the likelihood of them being marked as spam by email providers. Consult your domain registrar or hosting provider for instructions on configuring SPF and DKIM records.

Handling SMTP Relay Services

If you’re using a third-party SMTP relay service, such as SendGrid, Amazon SES, or Gmail SMTP, ensure that you configure Postman SMTP settings accordingly. Enter the SMTP server details provided by your SMTP relay service provider and adjust authentication settings as necessary to establish a secure connection.

Monitoring Email Activity

Postman SMTP offers built-in email logging and debugging features that allow you to monitor email activity and diagnose any issues that may arise. Check email logs regularly to track email delivery status, view error messages, and identify potential deliverability issues. Use this information to troubleshoot problems and optimize email delivery performance.

Ensuring Security and Compliance

When configuring Postman SMTP settings, prioritize security and compliance with industry standards and regulations. Enable encryption methods such as SSL/TLS to encrypt email transmissions and protect sensitive data from interception. Implement authentication mechanisms such as SMTP authentication to verify the identity of outgoing email servers and prevent unauthorized access.

Know more: How To Add SSL And HTTPS In WordPress

Regular Maintenance and Updates

Regularly review and update Postman SMTP settings to ensure optimal performance and security. Monitor email deliverability metrics, such as bounce rates and spam complaints, and make adjustments as needed to maintain high deliverability rates. Stay informed about updates and patches released by the plugin developer and apply them promptly to address any security vulnerabilities or bugs.


Configuring Postman SMTP on your WordPress website is a straightforward process that can significantly improve email deliverability and reliability. By following the steps outlined in this guide and customizing settings to meet your specific needs, you can ensure seamless email communication with your audience and enhance the overall user experience.

With Postman SMTP, you can take control of your email settings and overcome common challenges associated with email deliverability, security, and compliance, empowering you to focus on creating valuable content and engaging with your audience effectively.

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