Hi,
The server rejected one or more recipient addresses. The server response was: 550 5.7.1.How to overcome this exception.While sending mail with attachment?

hi

This is happening because your SmtpMail.SmtpServer is rejecting addresses.

* Make sure all email addresses specified at MailMessage.To, MailMessage.Cc, MailMessage.Bcc and MailMessage.From are valid email addresses.
* Make sure you have permissions to relay through the server.
* Make sure the MailMessage.From has permissions to relay through the server.

__________________
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''''''Rajesh''''''
Ants. . . . . . Like me

You can send this Code

Hi,
In the following lines only i m getting the exception.

SmtpMail.SmtpServer = "localhost";
SmtpMail.Send (email);

The server rejects the mail because you have no privilage to access the SMTP server. One must require authentication to access this server.

So if your company have any SMTP server then you may use it as a mean to send mails to the others.

Hi,
Our Company have access over it.Still i used.
I solved it using SMTPClient request...

Hi,

May i get the source code of that module. Just to analyse and learn.

Hi,
Use the following in a button Click event


MailMessage mail = new MailMessage();
mail.From = new MailAddress(fromTextBox.Text);
mail.To.Add(toTextBox.Text);
mail.Subject = subjectTextBox.Text;
mail.Body = messageTextBox.Text;
Attachment mailAttach = new Attachment(fileUpload1.PostedFile.FileName);
mail.Attachments.Add(mailAttach);
SmtpClient smtp = new SmtpClient("127.0.0.1");
smtp.Send(mail);
Response.Write("Mail has been sent Successfully");


For this u have to include the namespace using System.Net.Mail;