how can i send mail to multiple persons at a time?

Hi,

Use code like below.

Dim mail As New MailMessage()

mail.To.Add(new MailAddress("[email protected]"));
mail.To.Add(new MailAddress("[email protected]"));
mail.To.Add(new MailAddress("[email protected]"));
mail.From = "[email protected]"
mail.Subject = "this is a test email."
mail.Body = "this is my test email body."
SmtpMail.SmtpServer = "localhost" 'your real server goes here
SmtpMail.Send(mail)

you can call it by a method on any event as your requirement