WordPress by default uses PHP mail (php_mail) to send emails, but this method has significant limitations, especially regarding email deliverability. Emails sent via PHP mail are often marked as spam or may not be delivered at all because they lack proper authentication and security checks required by modern email systems.
This is why PHP mail is not recommended for production environments where reliable email delivery is crucial.
SMTP (Simple Mail Transfer Protocol) authenticates emails with a username and password, improving deliverability, security, and ensuring emails are less likely to be flagged as spam
SMTP supports security protocols like SPF, DKIM, and DMARC, which help verify the legitimacy of emails and further boost deliverability.
Most reputable SMTP services provide detailed feedback on email delivery status, making it easier to troubleshoot issues.
To switch from PHP mail to SMTP, you need to configure your WordPress site to use an SMTP server. This can be done using plugins such as WP Mail SMTP, which allows you to connect your site to any SMTP service.
SMTP services can be included with your hosting provider or purchased separately. At Komorebihosti Host, several SMTP options are available in our email packages or included with hosting packages, all tested and fully compatible with WordPress.
Alternatively, you can use external SMTP providers like Brevo, SendGrid, Mailgun, or others. Many of these services offer free plans suitable for small to medium websites.
If you are using any hosting packages with Komorebihost, we can assist you in configuring any of the supported SMTP services to ensure your WordPress emails are delivered reliably.
