------------------------------
09:42:28 (ERROR): | .. | : System.Net.Mail.SmtpException
 :   .  : Message was not accepted -- invalid mailbox.  Local mailbox natalia-pankova-1979@mail.ru is unavailable: user is terminated System.Net.Mail.SmtpException:   .  : Message was not accepted -- invalid mailbox.  Local mailbox natalia-pankova-1979@mail.ru is unavailable: user is terminated
    System.Net.Mail.DataStopCommand.CheckResponse(SmtpStatusCode statusCode, String serverResponse)
    System.Net.Mail.DataStopCommand.Send(SmtpConnection conn)
    System.Net.Mail.SmtpConnection.OnClose(Object sender, EventArgs args)
    System.Net.ClosableStream.Close()
    System.Net.Mail.MailWriter.Close()
    System.Net.Mail.SmtpClient.Send(MailMessage message)
    SKBKontur.KZ.COM.Mail.MySmtpClient.Send(MailMessage message)
------------------------------
09:42:28 (ERROR): | .. |   .    :
SmtpStatusCode: MailboxUnavailable
 : System.Net.Mail.SmtpException
 :   .  : Message was not accepted -- invalid mailbox.  Local mailbox natalia-pankova-1979@mail.ru is unavailable: user is terminated 
