@@ -314,6 +314,8 @@ class BusinessHostAPIView(APIView):
             return Response({'detail': str(err)}, status=status.HTTP_400_BAD_REQUEST)
         except AdminCreateForbidden as err:
             return Response({'detail': str(err)}, status=status.HTTP_403_FORBIDDEN)
+        except DomainNotFound:
+            return Response({'detail': _('Email sending error: email not found')}, status=status.HTTP_400_BAD_REQUEST)
         except Exception as err:
             return Response({'detail': f'{err}'}, status=status.HTTP_400_BAD_REQUEST)
 
@@ -364,6 +366,8 @@ class ReinviteBusinessAccountAPIView(APIView):
             )
             BusinessHostService(request.user).reinvite_business_account(business_account=business_account)
             return Response({'detail': _('Business account has been reinvited')}, status=status.HTTP_200_OK)
+        except DomainNotFound:
+            return Response({'detail': _('Email sending error: email not found')}, status=status.HTTP_400_BAD_REQUEST)
         except LetterNotFound as exc:
             return Response({'detail': f'{exc}'}, status=status.HTTP_500_INTERNAL_SERVER_ERROR)
         except LetterUnknownException as exc:
@@ -590,6 +590,10 @@ msgstr "Сотрудник успешно удален"
 msgid "Business account has been reinvited"
 msgstr "Повторное приглашение сотруднику успешно отправлено"
 
+#: authentication/views.py:367
+msgid "Email sending error: email not found"
+msgstr "Ошибка отправки письма: email не найден"
+
 #: authentication/views.py:420
 msgid "Business account password has been updated"
 msgstr "Пароль сотрудника успешно обновлен"