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\shailiendoscopy.com\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.
Error

OOps! something went wrong. We are working on it. Please check it soon.
Shailiendoscopy Team