Plugin Directory

WP-Mail-Validator

kimpenhaus

WP-Mail-Validator is an anti-spam plugin. It provides mail-address validation in 5 ways:

Back List

w3prodigy

Adds Whitelist and Blacklist options for Trackbacks and Pingbacks

AIS: IP Blocker

AIS TECHNOLABS

Blocks malicious IP Addresses, Spammers and Hackers from accessing page without compromising the performance of your WordPress Website.

Blacklist keys manager

tmatsuur

The increase in efficiency of management of a comment blacklist is attained, and a spam comment is blocked.

Tornevall Networks DNSBL Implementation

tornevall

Tornevall Networks DNSBL implementation with FraudBL support for WordPress

abuse.ch httpBL check

samsx

This plugin checks if a visitor is listed on httpBL.abuse.ch.

DigitaleZen AntiSpam Shield for CF7

Riccardo Rosignoli

Privacy-conscious spam protection for Contact Form 7 using a honeypot, signed timing token, rate limiting, and a local adaptive blacklist.

AS Blacklist Customer

Akshar Soft Solutions

Adds a blacklist notice to customers, shown on all past and future orders in admin.

Capably Digital Email Validation and Blocklist

Capably Digital

Easily set up email blocklists and mx checking to reduce bounce rates and unwanted signups, reducing email volume and protecting sender reputation.

Spam to blacklist

proninyaroslav

Adds IP from comment that marked as spam to standard WordPress blacklist.

RiskyBuyer – Customer Flags for WooCommerce

Dan

Flag problematic WooCommerce customers by phone or name and automatically mark their orders in the admin.

Kous Cash on Delivery Filter

kouskouris

Restrict WooCommerce Cash on Delivery using email, international phone numbers, device fingerprints, and reference-only IP data.

Dead-Letter

SoftCreatR

Dead-Letter.Email for Wordpress. Dead simple disposable email check that just works.

Branching Software Order Fraud Protection for WooCommerce

Branching Software

Stop card testing and fraudulent orders. Blacklist by email, phone, IP, or address; auto-block repeat offenders; protect your WooCommerce checkout.

PCrisk Trust Badge – Website Security Seal & Malware Scanner

pcrisk

Click-to-verify trust badge and security seal, backed by real malware, phishing and blacklist scans. Free monthly monitoring; daily scans on paid.

Comments Word Blacklist Manager

GeekParadize

Remotely add known terms into the WordPress blacklist keys to manage spam

Geek Mail Blacklist

gongwan33

Block users with certain emails from registering to your WordPress site by adding blacklist rules.

exlink-safe-filter – External Link Security

C1G

高级外部链接安全过滤插件，提供白名单、灰名单、黑名单分类管理及多种安全防护选项。