WordPress SMTP: the free AIFORYA email delivery plugin
Send WordPress emails via SMTP for better deliverability. Free plugin, configured locally, no API key, with a test email.

Make sure your site's emails actually arrive.
AIFORYA SMTP sends WordPress emails through an authenticated SMTP server instead of the PHP mail() function, which is often blocked or classified as spam. The result is immediate: better deliverability for your signups, orders, password resets and notifications. Free, with no time limit, no API key.
- Free and complete: SMTP rerouting, controlled sender, encryption and test email included.
- Configured locally: your credentials stay in your WordPress database, never transmitted to a third party.
- Lightweight: a plugin dedicated to deliverability, with no superfluous features.
Why an email that doesn't arrive costs you
An order confirmation email that ends up in spam is a customer who doubts. A password reset that never arrives is a lost user. The problem is almost always the same: WordPress sends its emails with mail(), a function that many hosts block and that mailboxes consider unreliable because it is not authenticated.
Switching to an authenticated SMTP server solves this problem at the root: your emails leave from a controlled address, encrypted and signed, and mailboxes trust them. AIFORYA SMTP makes this switch accessible in a few minutes, with a test email to immediately confirm everything works.
What the plugin does
- Complete SMTP rerouting — all emails sent by WordPress (
wp_mail) go through the SMTP server you configure. - Controlled sender — set a consistent sender address and name, with an option to force them on all emails.
- Encryption and authentication — support for SSL and TLS, with or without credentials depending on your server.
- Built-in test email — send a control email in one click and immediately get the result: success, or a detailed error message to fix.
- Last test result — the dashboard shows the status of the last sending attempt.
How it does better than competing free plugins
| AIFORYA SMTP | Common free plugins | |
|---|---|---|
| Test email | Included, with detailed error message | Often limited or paid |
| Forced sender | Included | Sometimes reserved for the paid version |
| Privacy | Credentials stored locally, direct connection | Frequently routed through a third-party service |
| Weight | Dedicated and lightweight plugin | Heavy marketing suite |
| API key / account | None | Often required |
Install in 2 minutes
- Download the plugin here (or install it from WordPress.org).
- Activate it from the Plugins menu.
- Open the AIFORYA SMTP menu, Settings tab, and enter the host, port, encryption and your credentials.
- In the Test tab, send a control email to validate the configuration.
Once the test is green, all your WordPress emails go through your SMTP server.
Questions fréquentes
Historique des mises à jour
- v1.0.0
Initial release: SMTP rerouting of wp_mail, controlled sender with a forcing option, SSL/TLS encryption, authentication and test email with a detailed result.
Une question ? Contactez-nous.