Free WordPress plugin · v1.0.1
Send reliable email from WordPress
WordPress’ default mail() is
unreliable and lands in spam. Route all outgoing email through your own SMTP server — with
an on-page test button that shows you exactly what the server says.
GPLv2 · Works with WordPress 5.5+ · PHP 7.2+
Why your mail ends up in spam
Without proper SMTP authentication, email from WordPress is easy to flag — and there’s no way to see why. SITC WP SMTP fixes both problems.
Ditch mail() for real SMTP
Hooks into WordPress’ built-in mailer via phpmailer_init.
Once enabled, mail() is never called again.
Test email with instant feedback
A one-click test sends a real message through your configuration and prints any error the SMTP server returns — authentication failures, connection problems, you name it.
Setup in under a minute
One settings page under Settings → SMTP: host, port, encryption (None/SSL/TLS), credentials, and an optional From address. That’s it.
Compatible with your provider
Works with Gmail SMTP, SendGrid, your hosting provider’s relay, or any server that speaks SMTP — TLS on 587, SSL on 465, or no encryption at all.
Failures you can actually see
Regular (non-test) mail failures are written to the PHP error log via
error_log() — no more silent drops.
Lightweight & clean uninstall
A small, focused plugin. Delete it and every setting is removed from your database — nothing left behind.
Up and running in three steps
Install & activate
Upload to /wp-content/plugins/ or install from the Plugins screen, then activate.
Enter your SMTP details
Go to Settings → SMTP, add host, port, encryption, and credentials. Hit Send Test Email to verify.
Enable & forget
Tick Enable SMTP, save, and every outgoing WordPress email goes through your server.
Stop losing emails to the spam folder
Free, open source, and self-hosted — your email data stays on your own server. Get SITC WP SMTP and send mail that actually arrives.
GPLv2 · WordPress 5.5+ · PHP 7.2+