Beschrijving
King SMTP is a free WordPress SMTP and Email Log plugin. No Pro version, no paywalls — everything is included for free.
Connect WordPress to any SMTP provider or use the built-in KingSMTP integration. Every email your site sends gets logged, searchable, and can be resent with one click.
What this plugin does:
- Connects to any SMTP provider — Gmail, Outlook, SendGrid, Mailgun, or your own server
- Built-in KingSMTP support — send via HTTP API, works even when port 25 is blocked
- Email Log — every sent email is logged with status, recipient, subject and error details
- Search, filter and resend emails directly from your WordPress dashboard
- Failure Alerts — get an email notification when a delivery fails
- Works with WooCommerce, Gravity Forms, Contact Form 7, WPForms, and any plugin that uses wp_mail
- TLS encrypted delivery
Everything is free. No Pro version.
Features like Email Log and Failure Alerts are locked behind a paid upgrade in other plugins. In King SMTP they are included for free.
Optional: KingSMTP provider
KingSMTP is a transactional email service built and maintained since 2017. It supports both SMTP and HTTP API delivery, so it works even when your hosting provider blocks port 25 (common on shared hosting, DigitalOcean, AWS). Buy SMTP with Bitcoin. No KYC required.
Schermafbeeldingen
Instellingen voor het gebruik maken van de Kingmailer HTTP API
Installatie
Te beginnen met Kingmailer WordPress SMTP bestaat uit slechts twee stappen: het installeren en instellen van de plugin. Kingmailer WordPress SMTP is ontworpen om te werken met de wp_mail functionaliteit en zal alle e-mails verzenden.
INSTALLEER KINGMAILER WORDPRESS SMTP VANUIT WORDPRESS
- Ga naar de pagina plugins in je dashboard en selecteer ‘Nieuw toevoegen’.
- Zoek naar ‘Kingmailer WordPress SMTP’;
- Activeer Kingmailer WordPress SMTP vanaf jouw pluginspagina;
- Ga hieronder naar ‘na activering’.
KINGMAILER WORDPRESS SMTP HANDMATIG INSTALLEREN
- Upload de map ‘kingmailer-smtp’ naar de /wp-content/plugins/directory;
- Activeer de Kingmailer WordPress SMTP-plugin via het menu ‘Plugins’ in WordPress;
- Ga hieronder naar ‘na activering’.
NA ACTIVERING
- Je moet de knop Instellingen zien.
- Ga door de instellingenpagina en stel de plugin voor je site in;
- Je bent klaar!
FAQ
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Do I need a KingSMTP account?
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No. You can use any SMTP provider (Gmail, Outlook, your own server, etc.). A KingSMTP account is optional.
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Is the Email Log really free?
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Yes. No Pro version needed.
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Which plugins are compatible?
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Any plugin that uses wp_mail — WooCommerce, Gravity Forms, Contact Form 7, WPForms, Elementor Forms, and more.
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Does it work when port 25 is blocked?
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Yes, if you use KingSMTP — it sends via HTTP API instead of SMTP.
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Is de verbinding versleuteld?
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Yes. TLS encrypted delivery.
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Hoe bereik ik klantenservice?
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Email wordpress@kingsmtp.com or reach us on Telegram at @KingSMTPcom.
Beoordelingen
Er zijn geen beoordelingen voor deze plugin.
Bijdragers & ontwikkelaars
“King SMTP – Email Log & Delivery” is open source software. De volgende personen hebben bijgedragen aan deze plugin.
Bijdragers
“King SMTP – Email Log & Delivery” is vertaald in 11 localen. Dank voor de vertalers voor hun bijdragen.
Vertaal “King SMTP – Email Log & Delivery” in je eigen taal.
Interesse in ontwikkeling?
Bekijk de code, haal de SVN repository op, of abonneer je op het ontwikkellog via RSS.
Changelog
0.4.3 (2026-03-25)
- New: View details page per email in Email Log (body preview, error details)
- New: Error reason included in failure alert emails
0.4.2 (2026-03-25)
- New: From column added to Email Log
0.4.1 (2026-03-24)
- Fix: Prevent failure alert email loop when delivery fails
- Fix: API timeout capped at 10s to prevent PHP execution time crash
0.4.0 (2026-03-23)
- New: Tabbed admin interface (General, Email Log, Alerts, Test Email, Settings)
- New: Email Log — all sent emails logged with status, search, filter, resend and delete
- New: Failure Alerts — email notification when delivery fails
- New: Multi-provider support — SMTP and KingSMTP selectable from General tab
- New: Safe upgrade routine — existing settings are never lost on update
- Improved: Test Email tab with custom recipient input
0.3.15
- Maintenance release
0.3.10 (2022-06-12)
* Getest met nieuwe WP-versie
0.3.09 (2021-07-31)
* Getest met nieuwe WP versie
0.3.08 (2021-02-06)
* Bijlage oplossing
= 0.3.07 (2020-12-12)::
* Verwijderen SMTP functionaliteit
= 0.3.0 (2020-11-28):
* SMTP-functionaliteit toevoegen
0.2 (2020-11-22):
- Bijgewerkte tekst
0.1 (2020-10-17):
- Eerste release