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S/MIME Email Signing

wordpress.orgInfrastructure

PulseGate's liveness check found it on 9 Oct 2026; it is registered on WordPress.org and has been in the index since 16 Jun 2026. How this is checked

S/MIME Email Signing is an open-source WordPress plugin that signs all outbound emails with an S/MIME certificate, enhancing email security and authenticity for WordPress site administrators. It integrates with PHPMailer and supports certificate management.

Inferred · not functionally tested

Open SourceWeb
Visit wordpress.org

Overview

5 features

Purpose: Enabling secure email signing for WordPress sites using S/MIME certificates.

Inferred · not functionally tested

Audience: WordPress administrators

Inferred · not functionally tested

Functions: Unknown

Interfaces: API: unknown · MCP: unknown · CLI: unknown · Self-hosting: unknown

Recorded constraints: pricing: open_source · license: Open Source · platforms: WEB · deployment: browser

Constraint provenance is unknown; confirm requirements with the publisher.

Record sources: wordpress.org · wordpress.org. These links do not verify the individual claims.

S/MIME Email Signing sits in PulseGate's Website firewall, bot & spam protection category. Inferred · not functionally tested: It focuses on enabling secure email signing for WordPress sites using S/MIME certificates. Inferred · not functionally tested: It is built as an open-source project for wordPress administrators. Basis unknown · not verified: The project is open source (Open Source). Basis unknown · not verified: S/MIME Email Signing is available on the web.

Liups233 builds and maintains S/MIME Email Signing, and it first shipped in 2025. Inferred · not functionally tested: Key capabilities include S/MIME signing, email encryption, and PHPMailer integration.

Summary written by a language model from the project’s public pages.

Tasks: Inferred · not functionally tested

  • S/MIME signing
  • Email encryption
  • PHPMailer integration
  • Certificate management
  • WordPress integration

Topics: Inferred · not functionally tested

Tags
email-signingsmime-certificatewordpress-plugin

JSON profile · Text profile · Access guide

Built with & integrations

Runs on
Browser

Trust & compliance

License
Open Source
Public signals
HTTPSPrivacy PolicyOpen SourceFree tier
Legal
Privacy Policy

Indexing history

What PulseGate has recorded for this listing

Nothing recorded for this listing in this window.

Frequently asked questions about S/MIME Email Signing

What does S/MIME Email Signing do?
Inferred · not functionally tested: S/MIME Email Signing focuses on enabling secure email signing for WordPress sites using S/MIME certificates. It is catalogued under Website firewall, bot & spam protection on PulseGate.
Who is S/MIME Email Signing for?
Inferred · not functionally tested: S/MIME Email Signing is an open-source project built for wordPress administrators.
Is S/MIME Email Signing free?
Basis unknown · not verified: Yes — S/MIME Email Signing is open source under the Open Source license and free to use.
What platforms does S/MIME Email Signing run on?
Basis unknown · not verified: S/MIME Email Signing runs on the web.
Is S/MIME Email Signing still active?
PulseGate's liveness check found it on 9 Oct 2026.
What projects are similar to S/MIME Email Signing?
Similar projects tracked by PulseGate include WP PGP Encrypted Emails, Add Email Signature, and SignEmail SMTP & DNS Diagnostic.WP PGP Encrypted EmailsAdd Email SignatureSignEmail SMTP & DNS Diagnostic
Who makes S/MIME Email Signing?
S/MIME Email Signing is developed by Liups233.
When did S/MIME Email Signing launch?
S/MIME Email Signing first shipped in 2025.

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