public async Task <IHttpActionResult> PostSendEmails([FromBody] List <Guid> guIdList, [FromUri] int templateId) { var contactsForSending = await manager.GetContactsByGuIdList(guIdList); if (contactsForSending == null) { return(NotFound()); } try { provider.SendEmailList(contactsForSending, templateId); } catch (Exception ex) { return(BadRequest(ex.Message)); } return(Ok("Thank you!!! ")); }