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WordPress: Use wp_mail() SMTP to Fix Email Delivery Issues

- 15.02.26 - ErcanOPAK

WordPress emails going to spam or not sending? PHP mail() is unreliable. Use SMTP instead.

Install Plugin: “WP Mail SMTP” or “Easy WP SMTP”

Or Add to functions.php:

add_action('phpmailer_init', function($phpmailer) {
    $phpmailer->isSMTP();
    $phpmailer->Host = 'smtp.gmail.com';
    $phpmailer->SMTPAuth = true;
    $phpmailer->Port = 587;
    $phpmailer->Username = 'your-email@gmail.com';
    $phpmailer->Password = 'your-app-password';
    $phpmailer->SMTPSecure = 'tls';
    $phpmailer->From = 'your-email@gmail.com';
    $phpmailer->FromName = 'Your Site Name';
});

Gmail App Password: Google Account → Security → 2-Step Verification → App Passwords

Result: 95%+ email delivery rate instead of 50%

Related posts:

WordPress: Transitioning to Headless Architecture with REST API

WordPress REST API Slow — Disable Unused Endpoints

WordPress Media URLs Break After Migration

Post Views: 4

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