diff --git a/mailpoet/lib/API/JSON/v1/Settings.php b/mailpoet/lib/API/JSON/v1/Settings.php
index 9ded45153c..5fc458506a 100644
--- a/mailpoet/lib/API/JSON/v1/Settings.php
+++ b/mailpoet/lib/API/JSON/v1/Settings.php
@@ -289,22 +289,6 @@ class Settings extends APIEndpoint {
     return $this->successResponse($response);
   }
 
-  public function checkDomainDmarcPolicy($data = []) {
-    $domain = $data['domain'] ?? null;
-
-    if (!$domain) {
-      return $this->badRequest([
-        APIError::BAD_REQUEST => __('No sender domain specified.', 'mailpoet'),
-      ]);
-    }
-
-    $domain = strtolower(trim($domain));
-
-    $response = ['isDmarcPolicyRestricted' => $this->senderDomainController->isDomainDmarcRestricted($domain)];
-
-    return $this->successResponse($response);
-  }
-
   public function getAuthorizedSenderDomains($data = []) {
     $domain = $data['domain'] ?? null;
 
diff --git a/mailpoet/lib/Services/AuthorizedSenderDomainController.php b/mailpoet/lib/Services/AuthorizedSenderDomainController.php
index df2a35d750..1affc7ff9b 100644
--- a/mailpoet/lib/Services/AuthorizedSenderDomainController.php
+++ b/mailpoet/lib/Services/AuthorizedSenderDomainController.php
@@ -166,17 +166,6 @@ class AuthorizedSenderDomainController {
     return $response;
   }
 
-  /**
-   * Check Domain DMARC Policy
-   *
-   * returns `true` if domain has Restricted policy e.g. policy === reject or quarantine
-   * otherwise returns `false`
-   */
-  public function isDomainDmarcRestricted(string $domain): bool {
-    $result = $this->getDmarcPolicyForDomain($domain);
-    return $result !== DmarcPolicyChecker::POLICY_NONE;
-  }
-
   /**
    * Fetch Domain DMARC Policy
    *
diff --git a/mailpoet/tests/integration/Services/AuthorizedSenderDomainControllerTest.php b/mailpoet/tests/integration/Services/AuthorizedSenderDomainControllerTest.php
index 429c8b8e42..04dc6a7120 100644
--- a/mailpoet/tests/integration/Services/AuthorizedSenderDomainControllerTest.php
+++ b/mailpoet/tests/integration/Services/AuthorizedSenderDomainControllerTest.php
@@ -284,18 +284,6 @@ class AuthorizedSenderDomainControllerTest extends \MailPoetTest {
     $controller->verifyAuthorizedSenderDomain('testdomain.com');
   }
 
-  public function testItReturnsTrueWhenDmarcIsEnabled() {
-    $controller = $this->getController();
-    $isRestricted = $controller->isDomainDmarcRestricted('mailpoet.com');
-    verify($isRestricted)->same(true);
-  }
-
-  public function testItReturnsFalseWhenDmarcIsNotEnabled() {
-    $controller = $this->getController();
-    $isRestricted = $controller->isDomainDmarcRestricted('example.com');
-    verify($isRestricted)->same(false);
-  }
-
   public function testItReturnsDmarcStatus() {
     $controller = $this->getController();
     $isRestricted = $controller->getDmarcPolicyForDomain('example.com');