Title: DevBrothers SMTP
Author: DevBrothers
Published: <strong>2026 年 7 月 1 日</strong>
Last modified: 2026 年 7 月 1 日

---

搜尋外掛

![](https://ps.w.org/devbrothers-smtp/assets/banner-772x250.jpg?rev=3592604)

![](https://ps.w.org/devbrothers-smtp/assets/icon-256x256.png?rev=3592604)

# DevBrothers SMTP

 由 [DevBrothers](https://profiles.wordpress.org/lzolotarev/) 開發

[下載](https://downloads.wordpress.org/plugin/devbrothers-smtp.1.1.0.zip)

 * [詳細資料](https://tw.wordpress.org/plugins/devbrothers-smtp/#description)
 * [使用者評論](https://tw.wordpress.org/plugins/devbrothers-smtp/#reviews)
 *  [安裝方式](https://tw.wordpress.org/plugins/devbrothers-smtp/#installation)
 * [開發資訊](https://tw.wordpress.org/plugins/devbrothers-smtp/#developers)

 [技術支援](https://wordpress.org/support/plugin/devbrothers-smtp/)

## 外掛說明

**DevBrothers SMTP** reroutes the standard WordPress mailer (`wp_mail`) through 
your own SMTP server instead of the unreliable PHP `mail()` function. It configures
the PHPMailer instance bundled with WordPress on the `phpmailer_init` hook, so every
plugin and theme that calls `wp_mail()` benefits automatically.

This plugin focuses on a simple, privacy-friendly setup for Russian mail providers
and small sites. All core features are free — no premium tier, no upsells, no external
email APIs.

#### Key Features

 * **One-click presets** — Yandex Mail and Mail.ru (host, port, SSL) filled in automatically
 * **Custom SMTP** — manual host, port, TLS or SSL, optional authentication
 * **Custom sender** — optional From email and From name, with a force option
 * **Test email** — one-click send to verify settings
 * **Delivery log** — last 200 messages with sent/failed status and error text (
   free; many competitors charge for this)
 * **Secure password** — optional `DBSMTP_PASSWORD` constant in `wp-config.php` 
   instead of the database
 * **DevBrothers Admin Panel** — settings inside the unified DevBrothers interface

#### Requirements

 * WordPress 5.8+
 * PHP 7.4+
 * [DevBrothers Admin Panel](https://wordpress.org/plugins/devbrothers-admin-panel/)(
   required dependency)

### External services

This plugin sends email through an SMTP server that **you** configure in the settings.
No email is sent to DevBrothers or any service we operate.

#### Your SMTP server

When SMTP delivery is enabled, WordPress emails (recipients, subject, body, attachments,
and headers) are transmitted to the host, port, and account you specify. The plugin
does not connect to a fixed third-party provider — you choose the server (for example
Yandex Mail, Mail.ru, your hosting provider, or another SMTP service).

Authentication credentials (username and password) are stored in your WordPress 
database or in the `DBSMTP_PASSWORD` constant in `wp-config.php`. They are used 
only to connect to your configured SMTP server.

 * Service provider: defined by you (the site administrator)
 * Terms and privacy: depend on your chosen SMTP provider

#### Local delivery log

The plugin stores a log of sent and failed messages (recipient, subject, status,
error text) in a database table on your site. This data is **not** transmitted to
DevBrothers or any external service.

## 螢幕擷圖

[⌊SMTP connection settings with provider presets⌉⌊SMTP connection settings with 
provider presets⌉[

SMTP connection settings with provider presets

[⌊Test email sending⌉⌊Test email sending⌉[

Test email sending

## 安裝方式

 1. Install and activate **DevBrothers Admin Panel** from WordPress.org (or install
    it when prompted).
 2. Install and activate **DevBrothers SMTP**.
 3. Go to **DevBrothers  SMTP**.
 4. Choose **Yandex Mail**, **Mail.ru**, or **Custom server**, enter your credentials,
    and save.
 5. Send a test email to verify the configuration.

## 常見問題集

### How do I set up Yandex Mail?

Select **Yandex Mail** in the provider dropdown. Use your full Yandex email as the
username. If two-factor authentication is enabled, create an app password in your
Yandex ID settings. The From address should match your mailbox.

### How do I set up Mail.ru?

Select **Mail.ru** in the provider dropdown. Use your full Mail.ru email as the 
username. If two-factor protection is enabled, use an app-specific password. The
From address should match your mailbox.

### Where do I store the SMTP password securely?

You can define a constant in `wp-config.php` instead of storing the password in 
the database:

    ```
    define('DBSMTP_PASSWORD', 'your-smtp-password');
    ```

When this constant is defined, the password field in the settings is hidden and 
the constant value is used.

### My emails go to spam. What should I check?

Make sure your sending domain has valid SPF, DKIM and DMARC records, and that the
From address matches your SMTP account.

### Why is DevBrothers Admin Panel required?

DevBrothers SMTP registers its settings page inside the DevBrothers admin UI. Install
Admin Panel from WordPress.org first.

### Does this plugin work when SMTP is disabled?

Yes. When the SMTP toggle is off, WordPress uses its default mail transport and 
this plugin does not alter PHPMailer settings.

### Is everything really free?

Yes. SMTP configuration, presets, test email, delivery log, and wp-config password
support are included at no cost. There is no premium version.

## 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〈DevBrothers SMTP〉的開發相關工作。

參與者

 *   [ DevBrothers ](https://profiles.wordpress.org/lzolotarev/)

[將〈DevBrothers SMTP〉外掛本地化為台灣繁體中文版](https://translate.wordpress.org/projects/wp-plugins/devbrothers-smtp)

### 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/devbrothers-smtp/)、
查看 [SVN 存放庫](https://plugins.svn.wordpress.org/devbrothers-smtp/)，或透過 [RSS](https://plugins.trac.wordpress.org/log/devbrothers-smtp/?limit=100&mode=stop_on_copy&format=rss)
訂閱[開發記錄](https://plugins.trac.wordpress.org/log/devbrothers-smtp/)。

## 變更記錄

#### 1.1.0

 * One-click presets for Yandex Mail and Mail.ru
 * Removed unencrypted SMTP option (only TLS and SSL)
 * All core features remain free

#### 1.0.0

 * Initial release
 * SMTP configuration for wp_mail via PHPMailer
 * Test email and delivery log (last 200 entries)
 * Integration with DevBrothers Admin Panel

## 中繼資料

 *  版本 **1.1.0**
 *  最後更新 **1 週前**
 *  啟用安裝數 **少於 10 次**
 *  WordPress 版本需求 ** 5.8 或更新版本 **
 *  已測試相容的 WordPress 版本 **7.0.1**
 *  PHP 版本需求 ** 7.4 或更新版本 **
 *  語言
 * [English (US)](https://wordpress.org/plugins/devbrothers-smtp/)
 * 標籤:
 * [email](https://tw.wordpress.org/plugins/tags/email/)[Mail.ru](https://tw.wordpress.org/plugins/tags/mail-ru/)
   [smtp](https://tw.wordpress.org/plugins/tags/smtp/)[wp_mail](https://tw.wordpress.org/plugins/tags/wp_mail/)
   [yandex](https://tw.wordpress.org/plugins/tags/yandex/)
 *  [進階檢視](https://tw.wordpress.org/plugins/devbrothers-smtp/advanced/)

## 評分

這個項目尚無任何評論記錄。

[Your review](https://wordpress.org/support/plugin/devbrothers-smtp/reviews/#new-post)

[查看全部使用者評論](https://wordpress.org/support/plugin/devbrothers-smtp/reviews/)

## 參與者

 *   [ DevBrothers ](https://profiles.wordpress.org/lzolotarev/)

## 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/devbrothers-smtp/)