Title: Cherkasov SMTP Mailer
Author: Denys Cherkasov
Published: <strong>August 11, 2025</strong>
Last modified: August 11, 2025

---

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# Cherkasov SMTP Mailer

 By [Denys Cherkasov](https://profiles.wordpress.org/cherkasov1/)

[Download](https://downloads.wordpress.org/plugin/cherkasov-smtp-mailer.1.0.zip)

 * [Details](https://wordpress.org/plugins/cherkasov-smtp-mailer/#description)
 * [Reviews](https://wordpress.org/plugins/cherkasov-smtp-mailer/#reviews)
 *  [Installation](https://wordpress.org/plugins/cherkasov-smtp-mailer/#installation)
 * [Development](https://wordpress.org/plugins/cherkasov-smtp-mailer/#developers)

 [Support](https://wordpress.org/support/plugin/cherkasov-smtp-mailer/)

## Description

The default `wp_mail()` function in WordPress can often be unreliable. Many hosting
providers limit or poorly configure email sending, which leads to important notifications(
like registrations, password resets, or WooCommerce orders) ending up in spam or
not being delivered at all.

**Cherkasov SMTP Mailer** solves this problem by re-routing all your site’s outgoing
emails through a professional SMTP server (such as Gmail, SendGrid, or any other
mail service). This significantly increases the reliability and deliverability of
your emails.

The plugin features a modern, intuitive interface, an advanced email log, and the
ability to receive instant notifications about sending statuses in your Telegram.

### Features

 * **Reliable Delivery:** Send emails through any SMTP server to avoid spam filters.
 * **Easy Configuration:** Quick presets for popular services (Gmail, Outlook, SendGrid)
   and flexible options for any other SMTP provider.
 * **Email Log:** Keeps a detailed log of all sent emails. View content, status,
   headers, and error messages.
 * **Log Management:** Search for emails, resend failed messages (one by one or 
   all at once), and delete entries.
 * **Telegram Notifications:** Get instant messages in Telegram about successfully
   sent or failed emails.
 * **Testing Tool:** A built-in feature to send a test email to verify your settings
   and see a detailed debug log.
 * **Security:** Passwords and tokens are not displayed in the form after being 
   saved and are transmitted securely.
 * **Modern UI:** A clean, responsive, and user-friendly interface built with modern
   web technologies.
 * **Retention Policies:** Configure automatic deletion of old log entries to keep
   your database clean.

### Configuration

After activating the plugin, go to **Settings > Cherkasov SMTP Mailer**.

#### 1. Main SMTP Settings

 1. **Mailer:**
 2.  * **SMTP:** Choose this option to send emails via an external server.
     * **Default WP Mailer:** Use your host’s standard mail function (not recommended).
 3. **Providers:** You can select a popular provider (Gmail, Outlook, SendGrid) to 
    auto-fill the host and port fields.
 4. **SMTP Host, Port, and Encryption:** Enter the details provided by your email service
    provider.
 5. **Authentication:** In most cases, this toggle should be enabled.
 6. **SMTP Credentials:** Enter the username (usually your email address) and password
    for your email account.
 7.  * **For Gmail/Google:** If you have two-factor authentication enabled, you must
       create an “App Password” in your Google account’s security settings and use 
       it here.
 8. **Save Changes.**

#### 2. Sender Details

 * **From Name:** The name recipients will see.
 * **From Email:** The address emails will be sent from.
 * **Force Sender:** If enabled, all emails from your site (even from other plugins)
   will be sent using the specified From Name and From Email.

#### 3. Telegram Notifications

 1. Click the “Telegram Notifications” button.
 2. Enable the “Enable Telegram Notifications” option.
 3. **Bot Token:** Create a new bot by talking to [`@BotFather`](https://t.me/botfather)
    on Telegram. It will provide you with a unique token. Paste it here.
 4. **Chat ID:** Talk to the [`@userinfobot`](https://t.me/userinfobot) and click “
    Start.” It will send you your unique ID. Paste it here.
 5. Choose which events you want to be notified about (failed and/or successful sends).
 6. Save the settings and click “Send Test” to verify.

### Third-Party Services

This plugin uses the Telegram API to send notifications about the status of sent
emails. This functionality is optional and only activated if you enable it in the
settings and provide your own Telegram Bot Token and Chat ID.

 * **Service:** Telegram Bot API
 * **Data Sent:** When enabled, the plugin sends the recipient’s email address, 
   email subject, your site’s URL, and the sending status (success or failure) to
   the Telegram API to be delivered to your specified chat.
 * **Terms of Service:** https://telegram.org/tos
 * **Privacy Policy:** https://telegram.org/privacy

## Screenshots

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## Installation

#### Method 1: Via WordPress Admin Panel (Recommended)

 1. Navigate to `Plugins` > `Add New` in your WordPress dashboard.
 2. In the search field, type `Cherkasov SMTP Mailer`.
 3. Click “Install Now,” and then “Activate.”

#### Method 2: Manual Upload

 1. Download the plugin’s ZIP archive.
 2. Go to `Plugins` > `Add New` and click the “Upload Plugin” button at the top.
 3. Select the downloaded ZIP file and click “Install Now.”
 4. After installation, click “Activate.”

## FAQ

### Q: My test emails are not being sent. What should I do?

**A:** Please check the following:
 1. **Credentials:** Ensure the SMTP username
and password are correct. For Gmail, use an “App Password.” 2. **Host and Port:**
Double-check that the SMTP host, port, and encryption type (TLS/SSL) are correct.
3. **Firewall:** Your hosting provider might be blocking outgoing connections on
the selected port. Contact their support for assistance. 4. **Debug Log:** After
sending a test email, the plugin displays a detailed report. Read it carefully, 
as it often indicates the cause of the error.

### A:

 * **Token:** Talk to the [`@BotFather`](https://t.me/botfather) bot on Telegram,
   choose `/newbot`, and follow the instructions.
 * **Chat ID:** Talk to the [`@userinfobot`](https://t.me/userinfobot), and it will
   immediately send you your ID.

### Q: Will this plugin work with WooCommerce?

**A:** Yes, the plugin intercepts all calls to the `wp_mail()` function, so all 
emails from your site, including notifications from WooCommerce, will be sent through
the configured SMTP server.

## Reviews

There are no reviews for this plugin.

## Contributors & Developers

“Cherkasov SMTP Mailer” is open source software. The following people have contributed
to this plugin.

Contributors

 *   [ Denys Cherkasov ](https://profiles.wordpress.org/cherkasov1/)

[Translate “Cherkasov SMTP Mailer” into your language.](https://translate.wordpress.org/projects/wp-plugins/cherkasov-smtp-mailer)

### Interested in development?

[Browse the code](https://plugins.trac.wordpress.org/browser/cherkasov-smtp-mailer/),
check out the [SVN repository](https://plugins.svn.wordpress.org/cherkasov-smtp-mailer/),
or subscribe to the [development log](https://plugins.trac.wordpress.org/log/cherkasov-smtp-mailer/)
by [RSS](https://plugins.trac.wordpress.org/log/cherkasov-smtp-mailer/?limit=100&mode=stop_on_copy&format=rss).

## Changelog

#### 1.0.0

 * Initial release.
 * **Reliable Delivery:** Configuration for any SMTP server.
 * **Advanced UI:** Modern and intuitive settings page.
 * **Email Logging:** Full logging of all outgoing emails with management features(
   resend, delete, view).
 * **Telegram Notifications:** Instant alerts for email send status.

## Meta

 *  Version **1.0**
 *  Last updated **12 months ago**
 *  Active installations **Fewer than 10**
 *  WordPress version ** 5.0 or higher **
 *  Tested up to **6.8.6**
 *  PHP version ** 7.4 or higher **
 * Tags
 * [email](https://wordpress.org/plugins/tags/email/)[gmail](https://wordpress.org/plugins/tags/gmail/)
   [log](https://wordpress.org/plugins/tags/log/)[smtp](https://wordpress.org/plugins/tags/smtp/)
   [telegram](https://wordpress.org/plugins/tags/telegram/)
 *  [Advanced View](https://wordpress.org/plugins/cherkasov-smtp-mailer/advanced/)

## Ratings

No reviews have been submitted yet.

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[See all reviews](https://wordpress.org/support/plugin/cherkasov-smtp-mailer/reviews/)

## Contributors

 *   [ Denys Cherkasov ](https://profiles.wordpress.org/cherkasov1/)

## Support

Got something to say? Need help?

 [View support forum](https://wordpress.org/support/plugin/cherkasov-smtp-mailer/)