Email Not Sending in WordPress Here’s How to Fix the Default mail() Function Issue

If you are running a WordPress website and your emails are not being delivered, you’re not alone. Many website owners face the same problem – contact form emails don’t arrive, order confirmations are lost, and password reset links never show up in the inbox. This usually happens because WordPress uses the default PHP mail() function, which often fails on shared hosting or without proper configuration.

In this article, we’ll explain why this happens and how you can fix it with SMTP configuration to ensure your WordPress emails always get delivered.

Why WordPress mail() Function Fails

By default, WordPress relies on the server’s built-in PHP mail() function. While it may sound simple, there are several reasons why it doesn’t work reliably:

• Hosting restrictions – Many web hosts block mail() to prevent spam.

• Spam filters – Emails sent via mail() often lack proper authentication, so they land in the spam folder.

• No authentication – Without SMTP authentication, email providers like Gmail, Yahoo, or Outlook don’t trust the sender.

• Server misconfiguration – If the server’s mail settings are not properly set, delivery fails.

The Solution: Use SMTP Instead of mail()

SMTP (Simple Mail Transfer Protocol) is the standard method for sending emails securely. Unlike mail(), SMTP uses proper authentication, making it more reliable and spam-safe.

To fix WordPress email issues, you need to configure your site to send emails via SMTP.

How to Fix Email Not Sending Issue in WordPress

Step 1: Install an SMTP Plugin

The easiest way to switch from mail() to SMTP is by using a plugin. Some popular free options are:

• WP Mail SMTP

• Easy WP SMTP

• Post SMTP Mailer

Step 2: Configure SMTP Settings

After installing the plugin, go to the settings page and enter your email provider’s SMTP details. You’ll typically need:

• SMTP Host (e.g., smtp.gmail.com)

• SMTP Port (usually 465 or 587)

• Encryption type (SSL/TLS)

• SMTP Username (your email address)

• SMTP Password (your email password or app password)

Step 3: Test Your Emails

Most plugins include a “Send Test Email” option. Use it to confirm that your emails are now working correctly.

Best Practices for Reliable Email Delivery

• Use a professional email address (like info@yourdomain.com) instead of free Gmail/Yahoo.

• Set up SPF, DKIM, and DMARC records in your domain DNS to improve trust and deliverability.

• Avoid sending bulk promotional emails via WordPress; use a proper email marketing service like Mailchimp or Sendinblue.

Final Thoughts

Email delivery issues in WordPress are frustrating, especially when you rely on them for customer communication, sales confirmations, or contact form leads. The good news is, you don’t have to suffer from missing emails anymore. By setting up SMTP authentication, you can make sure your emails reach the inbox every time.

If you’re facing problems with your WordPress site or need help setting up SMTP, feel free to connect with professionals who can guide you through the process. A few simple steps can save you from losing important business opportunities.

👉 Visit SmartLifeSol.com for more tips, solutions, and guides to keep your website running smoothly.