Improve company productivity with a Business Account.Sign Up

x
  • Status: Solved
  • Priority: Medium
  • Security: Public
  • Views: 2730
  • Last Modified:

The server response was: 550 5.7.1 Unable to relay for

I keep getting this message from ASP.NET
The server response was: 550 5.7.1 Unable to relay for sender@domain.com.

in XP , I have Visual Studion installed in it, in SMTP Virtual server of XP I added the machine itself for a relay.
in Exchange server 2003 I added the XP machine name in a relay restriction also.

I have this code in asp.net:

Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click
        Dim msg As New MailMessage
        msg.From = "administrator@training.com"
        msg.To = "administrator@training.com"
        msg.Subject = " EMAIL TEST"
        SmtpMail.SmtpServer = "localhost"
        SmtpMail.Send(msg)
    End Sub
0
jskfan
Asked:
jskfan
1 Solution
 
moorhouselondonCommented:
Try changing the msg.From parameter to a legitimate user in the Exchange Active Directory.
0
Question has a verified solution.

Are you are experiencing a similar issue? Get a personalized answer when you ask a related question.

Have a better answer? Share it in a comment.

Join & Write a Comment

Featured Post

What Kind of Coding Program is Right for You?

There are many ways to learn to code these days. From coding bootcamps like Flatiron School to online courses to totally free beginner resources. The best way to learn to code depends on many factors, but the most important one is you. See what course is best for you.

Tackle projects and never again get stuck behind a technical roadblock.
Join Now