Olaf Lederer

Areeb Majeed

<p>Are you struggling with WordPress not sending emails correctly? Simple SMTP by <a href="https://maileroo.com" rel="nofollow ugc">Maileroo</a> is here to solve that! This plugin is designed to ensure your WordPress emails are sent reliably and efficiently, using your preferred SMTP service.</p>
<p>We aim to simplify and secure email delivery, ensuring your messages consistently land in the inbox. Simple SMTP by Maileroo fixes your email reliability by helping you switch to a proper SMTP Relay such as Maileroo, MailGun, SendGrid, etc. Simple SMTP by Maileroo is free to use and has everything you need to send your emails via WordPress!</p>
<h4>SMTP Explained</h4>
<p>SMTP, or Simple Mail Transfer Protocol, is the industry standard for sending emails across the internet. It plays a critical role in the email delivery process, acting as the protocol that governs the transmission of emails from one server to another. Understanding SMTP is essential for anyone managing email communications, particularly in a WordPress environment. If you do not use a proper SMTP relay service, your emails might go to spam, compromising their effectiveness and reach.</p>
<h4>HTTP API Integration</h4>
<p>Now, with the latest update, Simple SMTP by Maileroo offers HTTP API integration with Maileroo. This feature allows you to send emails via the Maileroo API, without the need for SMTP credentials. This is a great option for users whose hosting providers block SMTP ports or for those who prefer to use the Maileroo API for email delivery.</p>
<h4>SMTP Relay Providers</h4>
<p>Here are some of the popular SMTP Relay providers, each offering unique features and benefits for different email delivery needs:</p>
<ol>
<li><a href="https://maileroo.com" rel="nofollow ugc">Maileroo</a></li>
<li><a href="https://www.mailgun.com" rel="nofollow ugc">Mailgun</a></li>
<li><a href="https://sendgrid.com" rel="nofollow ugc">SendGrid</a></li>
<li><a href="https://aws.amazon.com/ses/" rel="nofollow ugc">Amazon SES</a></li>
<li><a href="https://www.smtp.com" rel="nofollow ugc">SMTP.com</a></li>
<li><a href="https://postmarkapp.com" rel="nofollow ugc">Postmark</a></li>
</ol>


Simple SMTP by Maileroo


I'm using the Maileroo API option and emails are delivered so fast!Excellent SMTP Relay service and a nice plugin.


Easy and quick setup!

Ensure seamless WordPress email delivery with our all-in-one SMTP plugin, compatible with Gmail, Outlook, Maileroo, SendGrid, Mailgun, and more!

Benjamin Buddle

<p>I have issues with my hosting service not allowing me to easily set the ‘From line’ for my server email. Whenever a new user signs up they see username@hostingservice.com even though they should see user@site.com. Before Send From you would be required to modify your installation of WordPress just about every time you do an update. No longer! With Send From, you simply go into your admin panel and set what the end user will see on their emails from line.</p>
<h3>Support Questions</h3>
<p>If there are any issues that crop up, I will be happy to take a look at solving them. However, due to many factors, I can’t offer active support for the plugin.</p>
<h3>Security</h3>
<p>CVE: CVE-2025-46469 – Cross-site scripting (Stored XSS) in plugin settings.</p>
<p>Summary: A stored XSS issue was reported in older versions of this plugin where un-sanitized input saved in plugin options could later be rendered into the admin interface without proper escaping. The repository has been updated to sanitize incoming option values and escape output when rendering form fields. The plugin also validates the test-send email address.</p>
<p>Mitigation applied in this repository:<br />
– Sanitize email values with WordPress’ sanitize_email() before saving.<br />
– Sanitize name fields with sanitize_text_field() before saving.<br />
– Escape values when printed into HTML attributes using esc_attr().<br />
– Validate test-send addresses with is_email() and refuse to save invalid addresses.</p>


Send From

Simple and effective

Plugin for modifying the from line on all emails coming from WordPress.

Simple SMTP by Maileroo vs Send From