內容簡介
總結：UserCheck 外掛能夠防止使用一次性或丟棄式電子郵件地址在您的網站註冊或留言，有助於保護您的網站免受垃圾郵件的侵擾，同時維護使用者群的品質。
問題與答案：
1. UserCheck 外掛的主要功能是什麼？
- 自動檢查電子郵件地址是否屬於一個持續更新的一次性電子郵件域名數據庫。
2. 需要配置什麼才能使用 UserCheck 外掛？
- 不需要任何配置，即可直接使用。
3. UserCheck 外掛如何與 WordPress 註冊和留言表單無縫整合？
- 自動與 WordPress 註冊和留言表單整合，讓您無需作任何額外的操作。
4. UserCheck 外掛使用的 API 由誰提供？為什麼它能保護網站免受新型一次性電子郵件提供者的侵害？
- UserCheck 使用由自身提供的 API，此 API 不斷更新以包含最新的一次性電子郵件域名，確保您的網站能夠保護免受新型一次性電子郵件提供者的干擾。
5. UserCheck 如何保護使用者的隱私？
- UserCheck 將電子郵件域名發送至其 API 進行驗證，不會傳輸任何個人資料或完整的電子郵件地址。如需更多關於 UserCheck 如何處理數據的資訊，請訪問 https://www.usercheck.com/privacy。
外掛標籤
開發者團隊
原文外掛簡介
UserCheck blocks disposable and throwaway email addresses from your sign-up forms. The result: less spam, fewer fake accounts, and a cleaner user base.
Supported plugins
If you’re using any of these, UserCheck protects them automatically — nothing to configure:
WordPress core (registration, comments, multisite signup, profile email change)
WooCommerce (classic checkout, Cart/Checkout Block, account registration, Edit-account email change)
Profile Builder (free + Pro)
Contact Form 7
WPForms
Elementor Pro Forms
Gravity Forms
Fluent Forms
Ninja Forms
Formidable Forms
MailPoet
Fallback for unsupported plugins
For plugins without a built-in integration, a fallback check catches sign-ups from any other form on your site. It only runs when someone submits a form, so it won’t slow down your dashboard or background tasks. You can turn it off under Settings → UserCheck → Coverage.
Choose what to block
Pick which kinds of email addresses get blocked: domains that can’t receive email, disposable addresses, public providers (Gmail, Yahoo, etc.), forwarding services that hide the real address, and known spammers. Domains on your UserCheck account blocklist are always blocked.
Lightweight by design
Emails are checked only when users submit a form (registration, comment, checkout) — never re-checked for existing users or orders. No background scans, no surprises.
Resilient by design
If our service is ever down or slow, your site keeps working: sign-ups go through and the error is logged for review. Each request times out after 2 seconds, so an unresponsive API can’t hold up your forms.
Full email or domain only
Send the full email (more accurate) or just the domain.
Extensible
Developers can plug UserCheck into any plugin’s validation hook by calling UserCheck::instance()->evaluate_email( $email ) and acting on the returned action, reason, and message.
Translation ready
All text in the plugin can be translated into any language.
Works out of the box
No configuration required. A free API key unlocks higher request limits.
Powered by UserCheck, which tracks new disposable email providers as they appear so your site’s protection stays current.
Privacy Policy
The plugin sends the email address (or just its domain, depending on your settings) to the UserCheck API for validation. The request User-Agent identifies the plugin version, WordPress version, site URL, and which integration triggered the check (e.g. wp_registration, wc_checkout, or fallback_is_email/
