etc/adminhtml/system.xml
<?xml version="1.0" encoding="UTF-8"?>
<!--
/**
* system
*
* @copyright Copyright © 2017 Staempfli AG. All rights reserved.
* @author juan.alonso@staempfli.com
*/
-->
<config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:module:Magento_Config:etc/system_file.xsd">
<system>
<tab id="staempfli" translate="label" sortOrder="800">
<label>Staempfli</label>
</tab>
<section id="staempfli_mailcatcher" translate="label" type="text" sortOrder="999" showInDefault="1" showInWebsite="0" showInStore="0">
<label>Mail Catcher</label>
<tab>staempfli</tab>
<resource>Staempfli_MailCatcher::configuration</resource>
<group id="configuration" translate="label" type="text" sortOrder="1" showInDefault="1" showInWebsite="0" showInStore="0">
<label>Mail Catcher Configuration</label>
<field id="enabled" translate="label" type="select" sortOrder="1" showInDefault="1" showInWebsite="0" showInStore="0">
<label>Enabled</label>
<source_model>Magento\Config\Model\Config\Source\Yesno</source_model>
<comment>Enable on Dev servers if you want to catch mails. It should always be disabled on Prod environments</comment>
</field>
<field id="whitelist" translate="label" type="text" sortOrder="10" showInDefault="1" showInWebsite="0" showInStore="0">
<label>White list Emails/Domains</label>
<comment>Comma separated list of emails/domains that are not caught</comment>
<depends>
<field id="enabled">1</field>
</depends>
</field>
<field id="redirect_recipient" translate="label" type="text" sortOrder="10" showInDefault="1" showInWebsite="0" showInStore="0">
<label>Redirect Email Recipient</label>
<validate>validate-email</validate>
<comment>If set, caught emails will be redirected to this address (i.e something@trash-mail.com). If empty, caught emails will be logged</comment>
<depends>
<field id="enabled">1</field>
</depends>
</field>
</group>
</section>
</system>
</config>