Denys Cherkasov

The default <code>wp_mail()</code> 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.
<h3>Features</h3>
<ul>
<li>Reliable Delivery: Send emails through any SMTP server to avoid spam filters.</li>
<li>Easy Configuration: Quick presets for popular services (Gmail, Outlook, SendGrid) and flexible options for any other SMTP provider.</li>
<li>Email Log: Keeps a detailed log of all sent emails. View content, status, headers, and error messages.</li>
<li>Log Management: Search for emails, resend failed messages (one by one or all at once), and delete entries.</li>
<li>Telegram Notifications: Get instant messages in Telegram about successfully sent or failed emails.</li>
<li>Testing Tool: A built-in feature to send a test email to verify your settings and see a detailed debug log.</li>
<li>Security: Passwords and tokens are not displayed in the form after being saved and are transmitted securely.</li>
<li>Modern UI: A clean, responsive, and user-friendly interface built with modern web technologies.</li>
<li>Retention Policies: Configure automatic deletion of old log entries to keep your database clean.</li>
</ul>
<h3>Configuration</h3>
After activating the plugin, go to Settings > Cherkasov SMTP Mailer.
<h4>1. Main SMTP Settings</h4>
<ol>
<li>Mailer:
<ul>
<li>SMTP: Choose this option to send emails via an external server.</li>
<li>Default WP Mailer: Use your host’s standard mail function (not recommended).</li>
</ul>
</li>
<li>Providers: You can select a popular provider (Gmail, Outlook, SendGrid) to auto-fill the host and port fields.</li>
<li>SMTP Host, Port, and Encryption: Enter the details provided by your email service provider.</li>
<li>Authentication: In most cases, this toggle should be enabled.</li>
<li>SMTP Credentials: Enter the username (usually your email address) and password for your email account.
<ul>
<li>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.</li>
</ul>
</li>
<li>Save Changes.</li>
</ol>
<h4>2. Sender Details</h4>
<ul>
<li>From Name: The name recipients will see.</li>
<li>From Email: The address emails will be sent from.</li>
<li>Force Sender: If enabled, all emails from your site (even from other plugins) will be sent using the specified From Name and From Email.</li>
</ul>
<h4>3. Telegram Notifications</h4>
<ol>
<li>Click the “Telegram Notifications” button.</li>
<li>Enable the “Enable Telegram Notifications” option.</li>
<li>Bot Token: Create a new bot by talking to <a href="https://t.me/botfather" rel="nofollow ugc"><code>@BotFather</code></a> on Telegram. It will provide you with a unique token. Paste it here.</li>
<li>Chat ID: Talk to the <a href="https://t.me/userinfobot" rel="nofollow ugc"><code>@userinfobot</code></a> and click “Start.” It will send you your unique ID. Paste it here.</li>
<li>Choose which events you want to be notified about (failed and/or successful sends).</li>
<li>Save the settings and click “Send Test” to verify.</li>
</ol>
<h3>Third-Party Services</h3>
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.
<ul>
<li>Service: Telegram Bot API</li>
<li>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.</li>
<li>Terms of Service: https://telegram.org/tos</li>
<li>Privacy Policy: https://telegram.org/privacy</li>
</ul>

Cherkasov SMTP Mailer

A reliable SMTP plugin for WordPress that ensures email delivery with logging and Telegram notifications.

Arshid

WP SMTP Mailer – SMTP7 allows you to configure and send all outgoing emails via a SMTP server (It works like the postman). This will prevent your emails from going into the junk/spam folder of the recipients.
Go to <code>Settings > SMTP7</code> and configure SMTP then post SMTP credentials.
You can set the following options:
<ul>
<li>Specify the from name and email address for outgoing email.</li>
<li>Choose to send mail by SMTP or PHP’s mail() function.</li>
<li>Specify an SMTP host (defaults to localhost).</li>
<li>Specify an SMTP port (defaults to 25).</li>
<li>Choose SSL / TLS encryption (not the same as STARTTLS).</li>
<li>Choose to use SMTP authentication or not (defaults to not).</li>
<li>Specify an SMTP username and password.</li>
</ul>
SMTP Testing server : <a href="https://mailmug.net" rel="nofollow ugc">MailMug.net</a> 
SMTP Testing : <a href="https://youtu.be/fAXevTJ0r8I" rel="nofollow ugc">https://youtu.be/fAXevTJ0r8I</a>
Support : <a href="http://www.ciphercoin.com/contact/" rel="nofollow ugc">http://www.ciphercoin.com/contact/</a> 
<a href="https://wpdebuglog.com/contact-form-7-not-sending-emails/" rel="nofollow ugc">Contact Form 7 Not Sending Emails</a>
<h4>WordPress SMTP Mailer Features</h4>
<ul>
<li>Send email using a SMTP sever.</li>
<li>You can use Gmail, Yahoo, Hotmail’s SMTP server if you have an account with them.</li>
<li>Securely deliver emails to your recipients.</li>
<li>Username and password encryption </li>
</ul>
<blockquote>
<h4>List of SMTP Servers (Outgoing)</h4>
<ul>
<li>Gmail :- Host: smtp.gmail.com – Secure(SSL) – Port(465)</li>
<li>Gmail :- Host: smtp.gmail.com – Secure(TLS) – Port(587)</li>
<li>Outlook.com :- Host: smtp-mail.outlook.com – Secure(TLS) – Port(587)</li>
<li>Office365.com :- Host: smtp.office365.com – Secure(TLS) – Port(587)</li>
<li>Hotmail.com :- Host: smtp.live.com – Secure(TLS) – Port(587)</li>
<li>Yahoo Mail :- Host: smtp.mail.yahoo.com – Secure(TLS) – Port(587)</li>
<li>Yahoo Mail :- Host: smtp.mail.yahoo.com – Secure(SSL) – Port(465)</li>
<li>Yahoo Mail Deutschland :- Host: smtp.mail.yahoo.com – Secure(SSL) – Port(465)</li>
<li>Yahoo Mail Plus :- Host: plus.smtp.mail.yahoo.com – Secure(SSL) – Port(465)</li>
<li>AOL.com :- Host: smtp.aol.com – Secure(TLS) – Port(587)</li>
<li>AT&T :- Host: smtp.att.yahoo.com – Secure(SSL) – Port(465)</li>
<li>NTL @ntlworld.com :- Host: smtp.ntlworld.com – Secure(SSL) – Port(465)</li>
<li>BT Connect :- Host: smtp.btconnect.com – No-Encryption – Port(25)</li>
<li>BT Openworld :- Host: mail.btopenworld.com – No-Encryption – Port(25)</li>
<li>BT Internet :- Host: mail.btinternet.com – No-Encryption – Port(25)</li>
<li>Orange :- Host: smtp.orange.net – No-Encryption – Port(25)</li>
<li>Orange UK :- Host: smtp.orange.co.uk – No-Encryption – Port(25)</li>
<li>Wanadoo UK :- Host: smtp.wanadoo.co.uk – No-Encryption – Port(25)</li>
<li>Comcast :- Host: smtp.comcast.net – No-Encryption – Port(587)</li>
<li>Yahoo Mail AU/NZ :- Host: smtp.mail.yahoo.com.au – Secure(SSL) – Port(465)</li>
<li>O2 Deutschland :- Host: mail.o2online.de – No-Encryption – Port(25)</li>
<li>zoho Mail :- Host: smtp.zoho.com – Secure(SSL) – Port(465)</li>
<li>T-Online Deutschland :- Host: securesmtp.t-online.de – Secure(TLS) – Port(587)</li>
<li>1&1 (1and1) :- Host: smtp.1and1.com – Secure(TLS) – Port(587)</li>
<li>1&1 Deutschland :- Host: smtp.1und1.de – Secure(TLS) – Port(587)</li>
<li>Verizon :- Host: outgoing.verizon.net – Secure (SSL) – Port(465)</li>
<li>Verizon (Yahoo hosted) :- Host: outgoing.yahoo.verizon.net – No-Encryption – Port(587)</li>
<li>Mail.com :- Host: smtp.mail.com – Secure(SSL) – Port(465)</li>
<li>GMX.com :- Host: smtp.gmx.com – Secure(SSL) – Port(465)</li>
<li>Yahoo Mail UK :- Host: smtp.mail.yahoo.co.uk – Secure(SSL) – Port(465)</li>
<li>Airmail :- Host: smtp.airmail.net – Secure(SSL) – Port(465)</li>
<li>Bluewin.ch :- Host: smtpauth.bluewin.ch – Secure(SSL) – Port(465)</li>
<li>Eartlink.net :- Host: smtpauth.earthlink.net – Secure(SSL) – Port(587)</li>
<li>iCloud Mail :- Host: smtp.mail.me.com – Secure(SSL) – Port(587)</li>
<li>Rocketmail :- Host: smtp.mail.yahoo.com – Secure(SSL) – Port(465)</li>
<li>Rogers :- Host: smtp.broadband.rogers.com – Secure(SSL) – Port(465)</li>
<li>Ameritech.net :- Host: smtp.mail.att.net – Secure(SSL) – Port(465)</li>
<li>Pacbell :- Host: smtp.mail.att.net – Secure(SSL) – Port(465)</li>
<li>Swbell :- Host: smtp.mail.att.net – Secure(SSL) – Port(465)</li>
<li>Bellsouth :- Host: smtp.mail.att.net – Secure(SSL) – Port(465)</li>
<li>Flash :- Host:- smtp.mail.att.net – Secure(SSL) – Port(465)</li>
</ul>
</blockquote>
Note: These SMTP Ports and Settings may be different depending upon your Host Provider. Please contact your Web Server Host for correct details.

WP SMTP Mailer – SMTP7

Takes 2 minutes (at most) to set up and works perfectly.

Quick and handy


It's a no-nonsense way to set up SMTP. I use Brevo for the relay server. They have a nice free tier. Combined with Brevos's easy-to-find API key, it's no sweat to have emails sent from your domain. For example, From address: your.name@yourdomain.com From name: Head Editor 



Getting an email sent to you@yourdomain.com is a whole other can of worms. But it's nice that this plugin doesn't have that. It keeps the settings simple.


Simple yet effective

WP SMTP Mailer Plugin - SMTP7.  Make email delivery easy from WordPress. It is easy to configure.

Cherkasov SMTP Mailer vs WP SMTP Mailer – SMTP7