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The WPTelMessage plugin works with contact forms such as Contact Form 7, WPForms, and NinjaForms. 
You can also configure the WPTelMessage plugin to work with WooCommerce, allowing you to receive notifications in Telegram about orders in your store and respond to them promptly. 
 
The WPTelMessage plugin has minimal settings. All you need to do is specify your Telegram group number and the token of your Telegram bot. After that, you only need to activate the contact form from which you want to receive messages. 
If you are using the WooCommerce plugin, in addition to activating the message reception feature, you will also need to enable the necessary notifications for orders or products.
<h3>Additional Info</h3>
<h4>Resources used by the WPTelMessage plugin</h4>
The WPTelMessage plugin uses the Telegram API (https://core.telegram.org/api) for its operation. 
The token number and chat ID you specified are required for the plugin to work and will be sent to the Telegram servers. 
Messages from contact forms and the WooCommerce plugin will also be sent to the Telegram servers.
You can read the Telegram API terms of use and Telegram privacy policy here: https://telegram.org/privacy/ru

WPTelMessage

The WPTelMessage plugin will help you quickly receive messages sent from the contact form on your website or from the WooCommerce plugin in Telegram.

SzMake

In English:
No spam in the <a href='https://wordpress.org/plugins/contact-form-7/' rel="ugc">Contact Form 7</a>.Add anti-spambot functionality to the CF7.
It blocks spam without using CAPTCHA,blocked by Invisible internal token-code with ajax.
This plugin blocks 100% of spam post in the author of the environment.
There is no modification of display the contact form.(The added field hidden)
(but the message which is posted by spammers manually via browser is not blocked by this plugin)
This method is the same as the <a href='https://wordpress.org/plugins/sz-comment-filter/' rel="ugc">Sz Comment Filter</a> which is released ahead.
In Japanese:
このプラグインは<a href='https://wordpress.org/plugins/contact-form-7/' rel="ugc">Contact Form 7</a>へのスパムbotからの投稿をブロックするプラグインです。
このプラグインでは、見えない入力欄を用意して投稿時にjavascriptでCAPTCHA入力に変わる固有の確認トークン入力処理をで行うことでスパムBotからの投稿をブロックします。
作者の環境では、今のところこのプラグインで100％スパムBOT投稿がブロックできています。
利用ユーザーのコメントフォームの見え方は変わりません。(追加される入力欄は非表示でユーザーから見えません)
(残念ながらこのプラグインではブラウザを介した手入力によるスパム投稿はブロックできません)
この対策手法は先にリリースしている <a href='https://wordpress.org/plugins/sz-comment-filter/' rel="ugc">Sz Comment Filter</a> と同じ方法です。
<a href="http://wp.szmake.net/contact-from-7-add-spam-bot-filter/" title="Documentation in Japanese" rel="nofollow ugc">日本語の詳細説明ページはこちら</a>
<h4>IMPORTANT NOTE</h4>
This plugin works with ContactForm7 3.6+,or later versions.
This plug-in is not related to the developer of the “Contact Form 7”.
(ja)このプラグインはContact Form 7 バージョン3.6以降との組み合わせで動作します。
(ja)このプラグインの作者はContact Form 7プラグイン開発元とは関係ありません。ご注意下さい。
<h4>Translators</h4>
<ul>
<li>Japanese (ja)</li>
</ul>
<h3>Contact</h3>
email to contact[at]szmake.net
twitter @sxmtz

Contact Form 7 Anti Spambot

No spam in the Contact Form 7.Add anti-spambot functionality to the CF7,it blocks spam without using CAPTCHA.

WPTelMessage vs Contact Form 7 Anti Spambot