diff --git a/mailpoet/lib/DI/ContainerConfigurator.php b/mailpoet/lib/DI/ContainerConfigurator.php
index 11b0ed0371..fb1d0e4aa2 100644
--- a/mailpoet/lib/DI/ContainerConfigurator.php
+++ b/mailpoet/lib/DI/ContainerConfigurator.php
@@ -377,6 +377,7 @@ class ContainerConfigurator implements IContainerConfigurator {
     $container->autowire(\MailPoet\Services\Bridge::class)->setPublic(true);
     $container->autowire(\MailPoet\Services\AuthorizedEmailsController::class)->setPublic(true);
     $container->autowire(\MailPoet\Services\CongratulatoryMssEmailController::class)->setPublic(true);
+    $container->autowire(\MailPoet\Services\AuthorizedSenderDomainController::class)->setPublic(true);
     // Tasks
     $container->autowire(\MailPoet\Tasks\State::class);
     // Settings
@@ -464,6 +465,7 @@ class ContainerConfigurator implements IContainerConfigurator {
     $container->register(\MailPoet\Util\CdnAssetUrl::class)
       ->setPublic(true)
       ->setFactory([__CLASS__, 'getCdnAssetsUrl']);
+    $container->autowire(\MailPoet\Util\DmarcPolicyChecker::class)->setPublic(true);
     $container->autowire(\MailPoet\Newsletter\Scheduler\Scheduler::class)->setPublic(true);
     // Validator
     $container->autowire(Validator::class)->setPublic(true);
diff --git a/mailpoet/lib/Services/AuthorizedSenderDomainController.php b/mailpoet/lib/Services/AuthorizedSenderDomainController.php
new file mode 100644
index 0000000000..b1af729c96
--- /dev/null
+++ b/mailpoet/lib/Services/AuthorizedSenderDomainController.php
@@ -0,0 +1,68 @@
+<?php
+
+namespace MailPoet\Services;
+
+use MailPoet\Util\DmarcPolicyChecker;
+
+class AuthorizedSenderDomainController {
+  const DOMAIN_VERIFICATION_STATUS_VALID = 'valid';
+  const DOMAIN_VERIFICATION_STATUS_INVALID = 'invalid';
+  const DOMAIN_VERIFICATION_STATUS_PENDING = 'pending';
+
+  /** @var Bridge */
+  private $bridge;
+
+  /** @var DmarcPolicyChecker */
+  private $dmarcPolicyChecker;
+
+  public function __construct(
+    Bridge $bridge,
+    DmarcPolicyChecker $dmarcPolicyChecker
+  ) {
+    $this->bridge = $bridge;
+    $this->dmarcPolicyChecker = $dmarcPolicyChecker;
+  }
+
+  /**
+   * Get all Authorized Sender Domains
+   *
+   * Note: This includes both verified and unverified domains
+   */
+  public function getAllSenderDomains(): array {
+    $records = $this->bridge->getAuthorizedSenderDomains();
+    $domains = array_keys($records);
+    return $domains;
+  }
+
+  /**
+   * Get all Verified Sender Domains
+   */
+  public function getVerifiedSenderDomains(): array {
+    $records = $this->bridge->getAuthorizedSenderDomains();
+    $verifiedDomains = [];
+
+    foreach ($records as $key => $value) {
+      [$domainKey1, $domainKey2, $secretRecord] = $value;
+      if (
+        $domainKey1['status'] === self::DOMAIN_VERIFICATION_STATUS_VALID &&
+        $domainKey2['status'] === self::DOMAIN_VERIFICATION_STATUS_VALID &&
+        $secretRecord['status'] === self::DOMAIN_VERIFICATION_STATUS_VALID
+      ) {
+        $verifiedDomains[] = $key;
+      }
+    }
+
+    return $verifiedDomains;
+  }
+
+  /**
+   * Check Domain DMARC Policy
+   *
+   * returns `true` if domain has Retricted policy e.g policy === reject or quarantine
+   * otherwise returns `false`
+   */
+  public function isDomainDmarcRetricted(string $domain): bool {
+    $result = $this->dmarcPolicyChecker->getDomainDmarcPolicy($domain);
+    return $result !== DmarcPolicyChecker::POLICY_NONE;
+  }
+}
diff --git a/mailpoet/lib/Util/DmarcPolicyChecker.php b/mailpoet/lib/Util/DmarcPolicyChecker.php
index 2b49ccfdee..06282ac097 100644
--- a/mailpoet/lib/Util/DmarcPolicyChecker.php
+++ b/mailpoet/lib/Util/DmarcPolicyChecker.php
@@ -47,7 +47,7 @@ class DmarcPolicyChecker {
         $item = explode('=', $value);
         $dKey = $item[0] ?? '';
         $dValue = $item[1] ?? '';
-        $dmarcInfo[trim($dKey)] = trim($dValue);
+        $dmarcInfo[strtolower(trim($dKey))] = strtolower(trim($dValue));
     }
 
     // policy can either be reject or quarantine or none
diff --git a/mailpoet/tests/integration/Services/AuthorizedSenderDomainControllerTest.php b/mailpoet/tests/integration/Services/AuthorizedSenderDomainControllerTest.php
new file mode 100644
index 0000000000..a9f3f3de04
--- /dev/null
+++ b/mailpoet/tests/integration/Services/AuthorizedSenderDomainControllerTest.php
@@ -0,0 +1,72 @@
+<?php
+
+namespace MailPoet\Test\Services;
+
+use MailPoet\Services\AuthorizedSenderDomainController;
+use MailPoet\Util\DmarcPolicyChecker;
+use MailPoet\Mailer\Mailer;
+use MailPoet\Services\Bridge;
+use MailPoet\Services\Bridge\API;
+use MailPoet\Settings\SettingsController;
+use MailPoet\WP\Functions as WPFunctions;
+
+class AuthorizedSenderDomainControllerTest extends \MailPoetTest {
+
+  /** @var SettingsController */
+  private $settings;
+
+  /** @var Bridge */
+  private $bridge;
+
+  public function _before() {
+    parent::_before();
+
+    $apiKey = getenv('WP_TEST_MAILER_MAILPOET_API');
+    if (!$apiKey) {
+      $this->markTestSkipped("Skipping, 'WP_TEST_MAILER_MAILPOET_API' not set.");
+    }
+
+    $this->bridge = new Bridge();
+    $this->bridge->api = new API($apiKey, new WPFunctions());
+
+    $this->settings = SettingsController::getInstance();
+    $this->settings->set(
+      Mailer::MAILER_CONFIG_SETTING_NAME,
+      [
+        'method' => 'MailPoet',
+        'mailpoet_api_key' => $apiKey,
+      ]
+    );
+  }
+
+  public function testItFetchSenderDomains() {
+    $domains =  ['mailpoet.com', 'GOOD', 'testdomain.com'];
+
+    $controller = $this->getController();
+    $allDomains = $controller->getAllSenderDomains();
+    expect($allDomains)->same($domains);
+  }
+
+  public function testItReturnsVerifiedSenderDomains() {
+    $controller = $this->getController();
+    $verifiedDomains = $controller->getVerifiedSenderDomains();
+    expect($verifiedDomains)->same(['mailpoet.com']); // only this is Verified for now
+  }
+
+  public function testItReturnsTrueWhenDmarcIsEnabled() {
+    $controller = $this->getController();
+    $isRetricted = $controller->isDomainDmarcRetricted('mailpoet.com');
+    expect($isRetricted)->same(true);
+  }
+
+  public function testItReturnsFalseWhenDmarcIsNotEnabled() {
+    $controller = $this->getController();
+    $isRetricted = $controller->isDomainDmarcRetricted('example.com');
+    expect($isRetricted)->same(false);
+  }
+
+  private function getController(): AuthorizedSenderDomainController {
+    $dmarcPolicyChecker = $this->diContainer->get(DmarcPolicyChecker::class);
+    return new AuthorizedSenderDomainController($this->bridge, $dmarcPolicyChecker);
+  }
+}