diff --git a/mailpoet/assets/js/src/common/authorize_sender_email_modal.tsx b/mailpoet/assets/js/src/common/authorize_sender_email_modal.tsx
index 27115d28fc..926f26c04c 100644
--- a/mailpoet/assets/js/src/common/authorize_sender_email_modal.tsx
+++ b/mailpoet/assets/js/src/common/authorize_sender_email_modal.tsx
@@ -128,7 +128,7 @@ function AuthorizeSenderEmailModal({
 
     makeApiRequest(senderEmailAddress)
       .then((res) => {
-        const response = Boolean(res?.data);
+        const response = Boolean(res?.data?.status);
         setCreateEmailApiResponse(response);
         setShowLoader(response);
         if (response) {
diff --git a/mailpoet/lib/API/JSON/v1/Settings.php b/mailpoet/lib/API/JSON/v1/Settings.php
index ba140d0aab..e18c8959cf 100644
--- a/mailpoet/lib/API/JSON/v1/Settings.php
+++ b/mailpoet/lib/API/JSON/v1/Settings.php
@@ -219,7 +219,7 @@ class Settings extends APIEndpoint {
         $e->getMessage() === AuthorizedEmailsController::AUTHORIZED_EMAIL_ERROR_PENDING_CONFIRMATION
       ) {
         // return true if the email is already authorized or pending confirmation
-        $response = true;
+        $response = ['status' => true];
       } else {
         return $this->badRequest([
           APIError::BAD_REQUEST => WPFunctions::get()->__($e->getMessage(), 'mailpoet'),
diff --git a/mailpoet/lib/Services/AuthorizedEmailsController.php b/mailpoet/lib/Services/AuthorizedEmailsController.php
index 8f2aa8d373..680b3b3c36 100644
--- a/mailpoet/lib/Services/AuthorizedEmailsController.php
+++ b/mailpoet/lib/Services/AuthorizedEmailsController.php
@@ -64,11 +64,11 @@ class AuthorizedEmailsController {
     $this->settings->set(self::AUTHORIZED_EMAIL_ADDRESSES_ERROR_SETTING, null);
   }
 
-  public function getAllAuthorizedEmailAddress() {
+  public function getAllAuthorizedEmailAddress(): array {
     return $this->bridge->getAuthorizedEmailAddresses(self::AUTHORIZED_EMAIL_ADDRESSES_API_TYPE_ALL);
   }
 
-  public function createAuthorizedEmailAddress(string $email) {
+  public function createAuthorizedEmailAddress(string $email): array {
     $allEmails = $this->getAllAuthorizedEmailAddress();
 
     $authorizedEmails = isset($allEmails[self::AUTHORIZED_EMAIL_ADDRESSES_API_TYPE_AUTHORIZED]) ? $allEmails[self::AUTHORIZED_EMAIL_ADDRESSES_API_TYPE_AUTHORIZED] : [];
@@ -87,9 +87,8 @@ class AuthorizedEmailsController {
 
     $finalData = $this->bridge->createAuthorizedEmailAddress($email);
 
-    if (!is_bool($finalData) && is_array($finalData)) {
-      $errorMessage = isset($finalData['error']) ? $finalData['error'] : ' ';
-      throw new \InvalidArgumentException($errorMessage);
+    if ($finalData && isset($finalData['error'])) {
+      throw new \InvalidArgumentException($finalData['error']);
     }
 
     return $finalData;
diff --git a/mailpoet/lib/Services/Bridge.php b/mailpoet/lib/Services/Bridge.php
index 2b18b5419f..cdb59ba190 100644
--- a/mailpoet/lib/Services/Bridge.php
+++ b/mailpoet/lib/Services/Bridge.php
@@ -130,8 +130,6 @@ class Bridge {
 
   /**
    * Create Authorized Email Address
-   *
-   * returns true if done or an array of error messages
    */
   public function createAuthorizedEmailAddress(string $emailAdress) {
     $data = $this
diff --git a/mailpoet/lib/Services/Bridge/API.php b/mailpoet/lib/Services/Bridge/API.php
index baf563775d..e2fb3861a4 100644
--- a/mailpoet/lib/Services/Bridge/API.php
+++ b/mailpoet/lib/Services/Bridge/API.php
@@ -183,11 +183,11 @@ class API {
   /**
    * Create Authorized Email Address
    *
-   * returns true if done or an array of error messages
+   * returns ['status' => true] if done or an array of error messages ['error' => $errorBody, 'status' => false]
    * @param string $emailAddress
-   * @return bool|array
+   * @return array
    */
-  public function createAuthorizedEmailAddress(string $emailAddress) {
+  public function createAuthorizedEmailAddress(string $emailAddress): array {
     $body = ['email' => $emailAddress];
     $result = $this->request(
       $this->urlAuthorizedEmailAddresses,
@@ -204,12 +204,15 @@ class API {
         'error' => is_wp_error($result) ? $result->get_error_message() : $errorBody,
       ];
       $this->loggerFactory->getLogger(LoggerFactory::TOPIC_BRIDGE)->error('CreateAuthorizedEmailAddress API call failed.', $logData);
+
       $errorResponseData = json_decode($errorBody, true);
       $fallbackError = sprintf($this->wp->__('An error has happened while performing a request, the server has responded with response code %d'), $code);
-      return is_array($errorResponseData) ? $errorResponseData : ['error' => $fallbackError];
+
+      $errorData = is_array($errorResponseData) && isset($errorResponseData['error']) ? $errorResponseData['error'] : $fallbackError;
+      return ['error' => $errorData, 'status' => false];
     }
 
-    return $isSuccess;
+    return ['status' => $isSuccess];
   }
 
   public function setKey($apiKey) {
diff --git a/mailpoet/tests/integration/Services/AuthorizedEmailsControllerTest.php b/mailpoet/tests/integration/Services/AuthorizedEmailsControllerTest.php
index 199f6bf679..68b95b639b 100644
--- a/mailpoet/tests/integration/Services/AuthorizedEmailsControllerTest.php
+++ b/mailpoet/tests/integration/Services/AuthorizedEmailsControllerTest.php
@@ -264,14 +264,15 @@ class AuthorizedEmailsControllerTest extends \MailPoetTest {
       'pending' => ['pending@email.com'],
       'authorized' => ['authorized@email.com']
     ];
+    $response = ['status' => true];
     $bridgeMock = $this->make(Bridge::class, [
       'getAuthorizedEmailAddresses' => Expected::once($array),
-      'createAuthorizedEmailAddress' => Expected::once(true)
+      'createAuthorizedEmailAddress' => Expected::once($response)
     ]);
     $newslettersRepository = $this->diContainer->get(NewslettersRepository::class);
     $controller = new AuthorizedEmailsController($this->settings, $bridgeMock, $newslettersRepository);
     $result = $controller->createAuthorizedEmailAddress('new-authorized@email.com');
-    expect($result)->equals(true);
+    expect($result)->equals($response);
   }
 
   public function testItThrowsAnExceptionForReturnedArrayForCreateNewAuthorizedEmailAddress() {