Noor Alam

<a href="https://wphowto.net/smtp-mailer-plugin-for-wordpress-1482" rel="nofollow ugc">SMTP Mailer</a> plugin allows you to configure a mail server which handles all outgoing email from your website. It takes control of the wp_mail function and use SMTP instead.
<h3>SMTP Mailer Add-ons</h3>
<ul>
<li><a href="https://wphowto.net/how-to-add-a-reply-to-address-in-the-smtp-mailer-wordpress-plugin-6997" rel="nofollow ugc">Reply-To</a></li>
<li><a href="https://wphowto.net/smtp-mailer-email-logger-7066" rel="nofollow ugc">Email Logger</a></li>
</ul>
<h3>SMTP Mailer Settings</h3>
<ul>
<li>SMTP Host: Your outgoing mail server (e.g. smtp.gmail.com).</li>
<li>SMTP Authentication: Whether to use SMTP authentication when sending an email (True/False). If you choose to authenticate you will also need to provide your username and password.</li>
<li>SMTP Username: The username to connect to your SMTP server.</li>
<li>SMTP Password: The password to connect to your SMTP server.</li>
<li>Type of Encryption: The encryption to be used when sending an email (TLS/SSL/No Encryption. TLS is recommended).</li>
<li>SMTP Port: The port to be used when sending an email (587/465/25). If you choose TLS the port should be set to 587. For SSL use port 465 instead.</li>
<li>From Email Address: The email address to be used as the From Email when sending a test email.</li>
<li>From Name: The name to be used as the From Name when sending a test email.</li>
<li>Force From Name: The From name in the settings is set for all outgoing email messages.</li>
<li>Force From Email: The From email in the settings is set for all outgoing email messages.</li>
<li>Force From Address: The From address in the settings is set for all outgoing email messages.</li>
<li>Disable SSL Certificate Verification: As of PHP 5.6 a warning/error is shown if the SSL certificate on the server is not properly configured. This option lets you disable that behaviour.</li>
</ul>
<h3>SMTP Mailer Test Email</h3>
Once you have configured the settings you can send a test email to check the functionality of the plugin.
<ul>
<li>To: Email address of the recipient.</li>
<li>Subject: Subject of the email.</li>
<li>Message: Email body.</li>
</ul>
<h3>Known Compatibility</h3>
SMTP Mailer should work with any plugin that uses the WordPress Mail function. However, It has been tested with the following form and contact form plugins:
<ul>
<li>Contact Form 7</li>
<li>Jetpack Contact Form</li>
<li>Visual Form Builder</li>
<li>Fast Secure Contact Form</li>
<li>Formidable Forms</li>
<li>Contact Form by BestWebSoft</li>
</ul>
For detailed setup instructions please visit the <a href="https://wphowto.net/smtp-mailer-plugin-for-wordpress-1482" rel="nofollow ugc">SMTP Mailer</a> plugin page.

SMTP Mailer

So i have tried configuring it two ways - with gmail and smtp from my own hosting, it doesn't work in both cases.

With gmail it hangs on password authentication according to log - the password IS correct, less secure apps is checked and critical login is confirmed. 

With my own smtp credentials - it supposedly sending test message, but it simply doesn't comply with CF7, there's an error while sending form and that's it.

It is lightweight, which i really like but what of it if plugin doesn't work even on native settings?

To dev:
- if you fix it, then i will change my review. Latest WP, only your plugin and CF7, PHP 7.3 and default Wordpress theme.

It simply doesn't work with CF7

A bloat-free plugin that just sends SMTP emails as advertised. Great job Developers.

Minimalistic, Does the job


This is THE plugin you need to send e-mails. Forget about WPForms, Easy WP SMTP (after their upgrade it got super-bloated) or others. You just need to send e-mails, and this is the plugin to do it. Easy and lightweight.


The #1 SMTP plugin today


In the world of WP plugins, it's easy to get bogged down by bloated, feature-rich options. This plugin is a refreshing departure from that trend. It's lean, mean, and focused on doing one thing exceptionally well: sending emails.


Best SMTP plugin

Configure a SMTP server to send email from your WordPress site. Configure the wp_mail() function to use SMTP instead of the PHP mail() function.

FolioVision

This plugin reconfigures the wp_mail() function to use SMTP instead of mail() and creates an options page that allows you to specify various options.
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>
Also adds subject to headers for SendGrid Activity Screen. SengGrid is a powerful SMTP service, however it’s Activity Log screen misses the message subjects. Our plugin adds that back in!

WP Mail SMTP SendGrid Edition

Based on WP Mail SMTP. Also adds subject for display on SendGrid Activity Screen.

SMTP Mailer vs WP Mail SMTP SendGrid Edition