public BookEventHandler(
     IMailKitSmtpEmailSender mailKitSmtpEmailSender,
     EmailingTextTemplateService emailingTextTemplateService)
 {
     _mailKitSmtpEmailSender      = mailKitSmtpEmailSender;
     _emailingTextTemplateService = emailingTextTemplateService;
 }
 public DocumentEmailSenderService(
     IMailKitSmtpEmailSender emailSender,
     ICurrentUser currentUser,
     IHostingEnvironment hostingEnvironment,
     ISmtpEmailSenderConfiguration smtpEmailSenderConfiguration,
     IConfiguration configuration,
     IIdentityUserAppService identityUserAppService,
     IDepartmentAppService departmentAppService
     )
 {
     _emailSender                  = emailSender;
     _currentUser                  = currentUser;
     _hostingEnvironment           = hostingEnvironment;
     _smtpEmailSenderConfiguration = smtpEmailSenderConfiguration;
     _configuration                = configuration;
     _identityUserAppService       = identityUserAppService;
     _departmentAppService         = departmentAppService;
 }