at System.Net.Mail.RecipientCommand.CheckResponse(SmtpStatusCode statusCode, String response) at System.Net.Mail.SmtpTransport.SendMail(MailAddress sender, MailAddressCollection recipients, String deliveryNotify, Boolean allowUnicode, SmtpFailedRecipientException& exception) at System.Net.Mail.SmtpClient.Send(MailMessage message) at error.MailToSendSite(String tomail, String mailsubject, String frommail, String bodymail, String ccmail, String bccmail, String hostname, String musername, String mpass) in d:\inetpub\vhosts\\httpdocs\error.aspx.cs:line 70
Bad sequence of commands. The server response was: This mail server requires authentication when attempting to send to a non-local e-mail address. Please check your mail client settings or contact your administrator to verify that the domain or address is defined for this server.

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Shailiendoscopy Team