SMTP.com

<a href="https://smtp.com" rel="nofollow ugc">SMTP.com</a> was the first company to provide email delivery at scale for customers unsatisfied with traditional sending methods. With over 22 years of email delivery success, SMTP.com is the trusted transactional and email relay provider for over 100,000 businesses worldwide. This WordPress integration for SMTP.com enables you to send and track your emails seamlessly.
Don’t worry about maintaining your email server or taking care of its IP reputation, forget about dealing with ISPs like Gmail, Yahoo or Microsoft in attempting to understand why your email isn’t reaching its destination. SMTP.com manages all this on your behalf. Simply create a SMTP.com account to <a href="https://registration.smtp.com/?afid=wpplugin" rel="nofollow ugc">get started</a> and set up this plugin. Although this plugin is free you will need a paid subscription with SMTP.com to send emails from your WordPress site.
You can send emails from your WordPress site using the SMTP.com API or the standard SMTP protocol. Our plugin will suggest the best way for you to send email even if your provider has restricted access to outbound internet ports. Either way, SMTP.com will still ensure your email gets delivered.
Another useful feature provided with our WordPress plugin is the ability to track your email delivery from within the plugin itself. See the results of your recent sends to ensure successful delivery or identify the reason why your particular email hasn’t been delivered.


Didn't work with the API key, but managed with the login information.


Good

SMTP.com is a powerful and reliable SMTP delivery service that enables you to send and track high volume emails effortlessly.

Kevin Burkholder

{eac}SimpleSMTP is an <a href="https://eacDoojigger.earthasylum.com/" rel="nofollow ugc">{eac}Doojigger</a> extension which adds SMTP server configuration for WordPress so that all email sent from your WordPress site will be sent through your SMTP mail server.
<blockquote>
What is SMTP? … Simple Mail Transfer Protocol
</blockquote>
{eac}SimpleSMTP options include…
<ul>
<li>
SMTP Server Name
The outgoing mail server name. Typically something like smtp.your_email_domain.com.
</li>
<li>
SMTP Port
The mail server port to use. Typically, port 25 = no encryption, port 465 = SSL encryption, port 587 = TLS encryption.
</li>
<li>
SMTP Encryption
Does your mail server use encryption?
</li>
<li>
SMTP User Name
The email address/username used to authenticate with your mail server.
</li>
<li>
SMTP Password
The password used to authenticate with your mail server.
</li>
<li>
Send From Name
The default name used when sending email.
</li>
<li>
Send From Email
The default email address used when sending email.
</li>
<li>
Override Senders
Always send from above name/address (overriding other scripts).
</li>
<li>
SMTP Debugging
Enable capture and logging of wp_mail and phpMailer debugging data.
</li>
<li>
Default Headers
Add custom headers to all outgoing emails.
</li>
<li>
Send a Test
Send a test email to ensure your configuration is working.
</li>
</ul>
<h4>Filters</h4>
Two filters are available to retrieve the Send From Name and/or Send From Email
simpleSMTP_from_name
<pre><code>$sendFromName = apply_filters( 'simpleSMTP_from_name', get_bloginfo('name') )
</code></pre>
simpleSMTP_from_email
<pre><code>$sendFromEmail = apply_filters( 'simpleSMTP_from_email', get_bloginfo('admin_email') )
</code></pre>
<h4>Additional Information</h4>
<ul>
<li>{eac}SimpleSMTP is an extension plugin to and requires installation and registration of <a href="https://eacDoojigger.earthasylum.com/" rel="nofollow ugc">{eac}Doojigger</a>.</li>
</ul>
<h3>Copyright</h3>
<h4>Copyright © 2026, EarthAsylum Consulting, distributed under the terms of the GNU GPL.</h4>
This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
You should receive a copy of the GNU General Public License along with this program. If not, see <a href="https://www.gnu.org/licenses/" rel="nofollow ugc">https://www.gnu.org/licenses/</a>.

{eac}Doojigger Simple SMTP Extension for WordPress

Send email using an SMTP email sever. Configure WordPress wp_mail, and phpmailer, to use your SMTP (outgoing) mail server when sending email.

SMTP.com vs {eac}Doojigger Simple SMTP Extension for WordPress