at System.Net.Mail.SmtpClient.Send(MailMessage message)
at MercuryLabs.error.MailToSendSite(String tomail, String mailsubject, String frommail, String bodymail, String ccmail, String bccmail, String hostname, String musername, String mpass) in C:\Drashti Backup\2025\new\MercuryLabs\error.aspx.cs:line 75
Failure sending mail.
System.IO.IOException: Unable to read data from the transport connection: net_io_connectionclosed.
at System.Net.Mail.SmtpReplyReaderFactory.ProcessRead(Byte[] buffer, Int32 offset, Int32 read, Boolean readLine)
at System.Net.Mail.SmtpReplyReaderFactory.ReadLines(SmtpReplyReader caller, Boolean oneLine)
at System.Net.Mail.SmtpReplyReaderFactory.ReadLine(SmtpReplyReader caller)
at System.Net.Mail.SmtpConnection.GetConnection(ServicePoint servicePoint)
at System.Net.Mail.SmtpClient.GetConnection()
at System.Net.Mail.SmtpClient.Send(MailMessage message)