SMTP configuration ensures that your WordPress website sends emails (contact forms, password resets, notifications, etc.) securely and reliably. The default PHP mail() function can often fail or be marked as spam — SMTP solves this issue.

1. What is SMTP?

SMTP (Simple Mail Transfer Protocol) securely sends emails via authentication on a real mail server, improving deliverability.

2. Install an SMTP Plugin

The easiest way to set up SMTP is through a plugin. Recommended options:

• WP Mail SMTP by WPForms
• Easy WP SMTP
• Post SMTP Mailer/Email Log

3. Configure SMTP Settings

After activation, go to Settings → WP Mail SMTP and enter:

• From Email: info@yourdomain.com
• From Name: Your website or brand name
• Mailer: Other SMTP
• SMTP Host: mail.yourdomain.com
• Encryption: SSL or TLS
• SMTP Port: 465 (SSL) or 587 (TLS)
• Authentication: Yes
• Username: Your email address
• Password: Your email password

4. Send a Test Email

At the bottom of the page, use “Send a Test Email” to confirm that everything is working. If successful, you’ll see the message: “Email was sent successfully.”

5. Using Gmail SMTP (Optional)

• SMTP Host: smtp.gmail.com
• Port: 465 (SSL) or 587 (TLS)
• Username: Your Gmail address
• Password: App password (if 2FA is enabled)

Note: Using SMTP ensures your emails are authenticated and reach inboxes instead of spam folders.