Title: ZDN Whitelist Outgoing Email
Author: cuongquach
Published: 2026年7月14日
Last modified: 2026年7月14日
---
プラグインを検索
# ZDN Whitelist Outgoing Email
作者: [cuongquach](https://profiles.wordpress.org/cuongquach/)
[ダウンロード](https://downloads.wordpress.org/plugin/zdn-whitelist-outgoing-email.1.1.2.zip)
* [詳細](https://ja.wordpress.org/plugins/zdn-whitelist-outgoing-email/#description)
* [レビュー](https://ja.wordpress.org/plugins/zdn-whitelist-outgoing-email/#reviews)
* [インストール](https://ja.wordpress.org/plugins/zdn-whitelist-outgoing-email/#installation)
* [開発](https://ja.wordpress.org/plugins/zdn-whitelist-outgoing-email/#developers)
[サポート](https://wordpress.org/support/plugin/zdn-whitelist-outgoing-email/)
## 説明
**ZDN Whitelist Outgoing Email** prevents WordPress from accidentally sending emails
to real users in development or staging environments, and keeps a searchable log
of everything that left the site.
Filtering is **off by default** after activation so a live site is not affected
until you enable it. When filtering is on and the allowlist is empty, every recipient
is redirected to the fallback address.
#### Features
* **Whitelist-based filtering** — only allowed email addresses receive emails.
* **Wildcard domain support** — allow entire domains with `*@example.com`.
* **Fallback replacement** — non-whitelisted recipients are replaced with your
fallback address.
* **Traceability** — the original email is preserved in the display name (e.g.,`
user@external.com `).
* **Outgoing email logger** — capture To, subject, body, headers, attachments,
and errors in a custom table.
* **Filtered badge** — logs show when the whitelist rewrote recipients and what
the original address was.
* **View / resend / delete** — inspect HTML or raw bodies, resend a message, or
clean up bulk rows.
* **Retention rules** — auto-prune by max row count and/or age.
* **Highest priority filter** — hooks at `PHP_INT_MIN` so filtering runs before
any other mail plugin; logging runs last at `PHP_INT_MAX`.
* **CC/BCC filtering** — also filters CC and BCC headers.
* **PHP error log option** — optionally log replacements to the PHP error log.
#### Use Cases
* Development environments where you don’t want emails going to real customers.
* Staging sites that mirror production data.
* QA testing where only testers should receive emails.
* Debugging which plugin sent which email (and whether it was filtered).
### Privacy
When **email logging** is enabled, the plugin stores outgoing message metadata and
bodies locally (recipients, subject, body, headers, attachment paths, status, errors,
and server address). Access is limited to administrators (`manage_options`).
Retention options control automatic deletion by count and/or age. Individual or
bulk logs can be deleted from the Email Logs screen. Uninstalling the plugin removes
the log table, plugin options, and related scheduled events.
Suggested privacy-policy text is also registered with WordPress under **Settings
Privacy** for site owners to adapt.
The optional PHP error-log setting writes replacement events to the server error
log only (no external service).
## インストール
1. Upload the `zdn-whitelist-outgoing-email` folder to `/wp-content/plugins/`, or
install the release zip via **Plugins Add New Upload Plugin**.
2. Activate the plugin through the Plugins menu. Filtering starts **disabled**.
3. Go to **Outgoing Email Whitelist**.
4. Set your fallback email address.
5. Optionally add allowed email addresses (one per line). Leave empty to send all
outgoing emails to the fallback when filtering is enabled.
6. Enable filtering when you are ready.
7. Browse captured mail under **Outgoing Email Email Logs**.
## FAQ
### Will this break mail on a production site after I activate it?
No. Filtering is off by default. Mail is only rewritten after you enable filtering
in settings.
### What happens if filtering is on but the allowlist is empty?
Every To, Cc, and Bcc recipient is replaced with the fallback address. That is intentional
for staging clones of production data.
### Does resending a log send a real email?
Yes. Resend calls `wp_mail` again. If filtering is still enabled, recipients are
filtered again. Only users who can manage options can resend.
### Where are email logs stored?
In a custom database table (`{prefix}zdnwhoue_email_logs`) on your site. Nothing
is sent to third-party servers by this plugin.
## 評価
このプラグインにはレビューがありません。
## 貢献者と開発者
ZDN Whitelist Outgoing Email はオープンソースソフトウェアです。以下の人々がこのプラグ
インに貢献しています。
貢献者
* [ cuongquach ](https://profiles.wordpress.org/cuongquach/)
[“ZDN Whitelist Outgoing Email” をあなたの言語に翻訳しましょう。](https://translate.wordpress.org/projects/wp-plugins/zdn-whitelist-outgoing-email)
### 開発に興味がありますか ?
[コードを閲覧](https://plugins.trac.wordpress.org/browser/zdn-whitelist-outgoing-email/)
するか、[SVN リポジトリ](https://plugins.svn.wordpress.org/zdn-whitelist-outgoing-email/)
をチェックするか、[開発ログ](https://plugins.trac.wordpress.org/log/zdn-whitelist-outgoing-email/)
を [RSS](https://plugins.trac.wordpress.org/log/zdn-whitelist-outgoing-email/?limit=100&mode=stop_on_copy&format=rss)
で購読してみてください。
## 変更履歴
#### 1.1.2
* Fix email log detail modal contrast: design tokens now apply on the modal (not
only the page wrap) so meta fields and Raw/HTML message views stay readable.
#### 1.1.1
* Prefix all public PHP identifiers (classes, functions, options, hooks, script
handles) with `zdnwhoue` / `ZDNWHOUE` for WordPress.org uniqueness guidelines.
* Keep WordPress.org banner/icon assets out of the distributable plugin zip (SVN
assets only).
#### 1.1.0
* Initial release: whitelist-based outgoing email filtering with wildcard domain
support (`*@example.com`).
* Replace non-whitelisted To/Cc/Bcc recipients with a fallback address while preserving
the original in the display name.
* Hooks at `PHP_INT_MIN` so filtering runs before other mail plugins.
* Filtering defaults off after activation for safer installs; empty allowlist redirects
all recipients when filtering is on.
* Optional PHP error-log entries when a recipient is replaced.
* Outgoing email logger (custom table, list table, detail modal with HTML/raw views).
* Track whitelist rewrites on each log row (original recipient + Filtered badge).
* Logging settings: enable/disable, max logs, age-based retention.
* Resend, bulk delete, search, and status views (sent / failed / filtered).
* Top-level **Outgoing Email** admin menu with branded UI.
* Privacy policy helper content and uninstall cleanup of logs/options.
## メタ
* バージョン **1.1.2**
* 最終更新日 **3か月前**
* 有効インストール数 **10未満**
* WordPress バージョン ** 5.0またはそれ以降 **
* 検証済み最新バージョン: **7.0.7**
* PHP バージョン ** 7.4またはそれ以降 **
* 言語
* [English (US)](https://wordpress.org/plugins/zdn-whitelist-outgoing-email/)
* タグ
* [email](https://ja.wordpress.org/plugins/tags/email/)[filter](https://ja.wordpress.org/plugins/tags/filter/)
[logger](https://ja.wordpress.org/plugins/tags/logger/)[staging](https://ja.wordpress.org/plugins/tags/staging/)
[whitelist](https://ja.wordpress.org/plugins/tags/whitelist/)
* [詳細を表示](https://ja.wordpress.org/plugins/zdn-whitelist-outgoing-email/advanced/)
## 評価
レビューはまだ送信されていません。
[Your review](https://wordpress.org/support/plugin/zdn-whitelist-outgoing-email/reviews/#new-post)
[すべてのレビューを見る](https://wordpress.org/support/plugin/zdn-whitelist-outgoing-email/reviews/)
## 貢献者
* [ cuongquach ](https://profiles.wordpress.org/cuongquach/)
## サポート
意見や質問がありますか ?
[サポートフォーラムを表示](https://wordpress.org/support/plugin/zdn-whitelist-outgoing-email/)
## 寄付
このプラグインが今後も改善できるよう応援しませんか ?
[ このプラグインに寄付 ](https://ko-fi.com/cuongquach)