Title: ClearBounce Email Verification Author: ClearBounce Published: 2026 年 5 月 31 日 Last modified: 2026 年 5 月 31 日 --- 搜尋外掛 ![](https://ps.w.org/clearbounce-email-verification/assets/banner-772x250.png?rev =3555788) ![](https://ps.w.org/clearbounce-email-verification/assets/icon-256x256.png?rev= 3555773) # ClearBounce Email Verification 由 [ClearBounce](https://profiles.wordpress.org/clearbounce/) 開發 [下載](https://downloads.wordpress.org/plugin/clearbounce-email-verification.1.0.2.zip) * [詳細資料](https://tw.wordpress.org/plugins/clearbounce-email-verification/#description) * [使用者評論](https://tw.wordpress.org/plugins/clearbounce-email-verification/#reviews) * [安裝方式](https://tw.wordpress.org/plugins/clearbounce-email-verification/#installation) * [開發資訊](https://tw.wordpress.org/plugins/clearbounce-email-verification/#developers) [技術支援](https://wordpress.org/support/plugin/clearbounce-email-verification/) ## 外掛說明 ClearBounce Email Verification validates email addresses in real-time using the [ClearBounce](https://clearbounce.net) email verification API. Stop fake signups, reduce bounces, and protect your sender reputation. **Key Features:** * Real-time email verification via SMTP-level checks * Block undeliverable, disposable, role-based, and risky emails * Typo detection with “Did you mean…?” suggestions * Smart caching to minimize API calls * Fail-open design ensures forms always work, even during API outages * Detailed verification logs and statistics * Customizable error messages * Works with WordPress registration, comments, and all major form plugins **Supported Integrations:** * WordPress Registration * WordPress Comments * WooCommerce (checkout and registration) * Contact Form 7 * Gravity Forms * WPForms * Elementor Pro Forms * Ninja Forms * Fluent Forms * Fallback mode (hooks into is_email for universal coverage) **How It Works:** 1. A visitor submits a form with an email address 2. ClearBounce verifies the email in real-time (SMTP check, MX records, disposable detection, etc.) 3. If the email fails your configured rules, the form shows a friendly error message 4. Valid emails pass through normally with zero friction **What ClearBounce Checks:** * Email syntax validation * MX record verification * SMTP mailbox verification * Disposable email detection * Role-based email detection (info@, admin@, etc.) * Free email provider detection * Catch-all domain detection * Typo detection with smart suggestions ## 安裝方式 1. Upload the `clearbounce-email-verification` folder to `/wp-content/plugins/` 2. Activate the plugin through the ‘Plugins’ menu in WordPress 3. Go to Settings > ClearBounce 4. Enter your API key (get one at [clearbounce.net](https://clearbounce.net)) 5. Click “Test Connection” to verify your key works 6. Configure your block rules and integrations 7. Save changes – you’re protected! ## 常見問題集 ### Where do I get an API key? Sign up at [clearbounce.net](https://clearbounce.net) to get your API key. New accounts include free verification credits to get started. ### How many credits does each verification use? Each email verification uses 1 credit. Results are cached (24 hours by default) so repeat submissions of the same email don’t use additional credits. ### What happens if I run out of credits? The plugin will fail open by default, meaning emails will be allowed through without verification. You can change this behavior in settings, but we recommend keeping fail-open enabled to avoid blocking legitimate users. ### What happens if the API is down? With the default “fail open” setting, all emails are allowed through when the API is unreachable. Your forms will never break due to an API outage. ### Will this slow down my forms? The API typically responds in 1-3 seconds. Results are cached so returning visitors experience no delay. The verification happens server-side during form submission, so there’s no impact on page load speed. ### Does it work with my form plugin? ClearBounce supports WordPress Registration, WordPress Comments, WooCommerce, Contact Form 7, Gravity Forms, WPForms, Elementor Pro Forms, Ninja Forms, and Fluent Forms. There’s also a fallback mode that hooks into WordPress core for universal coverage. ### Can I customize the error messages? Yes! All error messages are fully customizable from the Settings page. You can set different messages for undeliverable, disposable, risky, role-based, catch-all, and free provider emails. ### Is the plugin GDPR compliant? ClearBounce only sends the email address to our API for verification. No other personal data is transmitted. Verification logs stored locally can be cleared at any time from the settings page. See our [privacy policy](https://clearbounce.net/privacy) for full details. ### What is the fallback/is_email mode? The fallback mode hooks into WordPress core’s `is_email` function to catch email validations from any source. It’s disabled by default because it affects all email processing in WordPress, including admin operations. Only enable it if you need to cover forms or plugins not listed in the supported integrations. ## 使用者評論 這個外掛目前沒有任何使用者評論。 ## 參與者及開發者 以下人員參與了開源軟體〈ClearBounce Email Verification〉的開發相關工作。 參與者 * [ ClearBounce ](https://profiles.wordpress.org/clearbounce/) [將〈ClearBounce Email Verification〉外掛本地化為台灣繁體中文版](https://translate.wordpress.org/projects/wp-plugins/clearbounce-email-verification) ### 對開發相關資訊感興趣？ 任何人均可[瀏覽程式碼](https://plugins.trac.wordpress.org/browser/clearbounce-email-verification/)、 查看 [SVN 存放庫](https://plugins.svn.wordpress.org/clearbounce-email-verification/)， 或透過 [RSS](https://plugins.trac.wordpress.org/log/clearbounce-email-verification/?limit=100&mode=stop_on_copy&format=rss) 訂閱[開發記錄](https://plugins.trac.wordpress.org/log/clearbounce-email-verification/)。 ## 變更記錄 #### 1.0.2 * Renamed all internal prefixes from `clearbounce_` / `ClearBounce_` / `CLEARBOUNCE_` to `cbev_` / `CBEV_` to follow WordPress plugin naming conventions and prevent conflicts with other plugins. * Added a one-time migration that moves existing settings and the logs table from the legacy prefix to the new prefix on first load — upgrades from 1.0.x are seamless and no settings are lost. * Fixed `load_plugin_textdomain()` to use the correct text domain (`clearbounce- email-verification`) so translations load properly. * Added `wp_unslash()` to `$_POST` and `$_GET` data before sanitization for stricter input handling. * No user-facing or functional changes — settings UI, integrations, and verification behavior remain identical. #### 1.0.0 * Initial release * Real-time email verification via ClearBounce API * Support for WordPress Registration, Comments, and WooCommerce * Contact Form 7, Gravity Forms, WPForms integrations * Elementor Pro Forms, Ninja Forms, Fluent Forms integrations * Fallback is_email hook for universal coverage * Typo detection and suggestion * Verification logs and statistics * Customizable error messages and block rules * Smart transient caching * Fail-open design for reliability ## 中繼資料 * 版本 **1.0.2** * 最後更新 **7 天前** * 啟用安裝數 **少於 10 次** * WordPress 版本需求 ** 5.6 或更新版本 ** * 已測試相容的 WordPress 版本 **7.0** * PHP 版本需求 ** 7.4 或更新版本 ** * 語言 * [English (US)](https://wordpress.org/plugins/clearbounce-email-verification/) * 標籤: * [disposable email](https://tw.wordpress.org/plugins/tags/disposable-email/)[email validation](https://tw.wordpress.org/plugins/tags/email-validation/) [email verification](https://tw.wordpress.org/plugins/tags/email-verification/) [spam prevention](https://tw.wordpress.org/plugins/tags/spam-prevention/) * [進階檢視](https://tw.wordpress.org/plugins/clearbounce-email-verification/advanced/) ## 評分 這個項目尚無任何評論記錄。 [Your review](https://wordpress.org/support/plugin/clearbounce-email-verification/reviews/#new-post) [查看全部使用者評論](https://wordpress.org/support/plugin/clearbounce-email-verification/reviews/) ## 參與者 * [ ClearBounce ](https://profiles.wordpress.org/clearbounce/) ## 技術支援 使用者可在技術支援論壇提出意見反應或使用問題。 [檢視技術支援論壇](https://wordpress.org/support/plugin/clearbounce-email-verification/)