King SMTP – Email Log & Delivery Security & Risk Analysis
wordpress.org/plugins/kingmailer-smtpFree SMTP and Email Log plugin for WordPress. Connect any SMTP provider, log every email, get failure alerts. Bitcoin SMTP.
Is King SMTP – Email Log & Delivery Safe to Use in 2026?
Generally Safe
Score 100/100King SMTP – Email Log & Delivery has no known CVEs and is actively maintained. It's a solid choice for most WordPress installations.
The kingmailer-smtp plugin v0.3.15 exhibits a strong security posture based on the provided static analysis. The plugin demonstrates good practices by implementing nonce checks and capability checks on all identified entry points, including the single AJAX handler. Furthermore, the absence of any critical or high-severity taint flows, coupled with the fact that all SQL queries utilize prepared statements, indicates robust handling of potentially sensitive operations. The plugin also avoids common risks like bundled libraries or raw SQL queries without proper sanitization.
Key Concerns
- One file operation found
- Two external HTTP requests found
- One output not properly escaped
King SMTP – Email Log & Delivery Security Vulnerabilities
King SMTP – Email Log & Delivery Release Timeline
King SMTP – Email Log & Delivery Code Analysis
Output Escaping
King SMTP – Email Log & Delivery Attack Surface
AJAX Handlers 1
WordPress Hooks 5
Maintenance & Trust
King SMTP – Email Log & Delivery Maintenance & Trust
Maintenance Signals
Community Trust
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King SMTP – Email Log & Delivery Developer Profile
1 plugin · 70 total installs
How We Detect King SMTP – Email Log & Delivery
Patterns used to identify this plugin on WordPress sites during automated security audits and web crawling.
Asset Fingerprints
/wp-content/plugins/kingmailer-smtp/assets/css/toast.css/wp-content/plugins/kingmailer-smtp/assets/js/toast.js/wp-content/plugins/kingmailer-smtp/assets/js/script.js/wp-content/plugins/kingmailer-smtp/assets/js/toast.js/wp-content/plugins/kingmailer-smtp/assets/js/script.jskingmailer-smtp/assets/css/toast.css?ver=kingmailer-smtp/assets/js/toast.js?ver=kingmailer-smtp/assets/js/script.js?ver=HTML / DOM Fingerprints
kingmailer-smtp-toastkingmailer-toast-close-buttonkingmailer_smtp