send mail in vb 2008 with autentication

Posted on 2009-04-02
Last Modified: 2013-11-30
I'm using this code:
See code


Im' reciving:
+System.Net.Mail.SmtpException      5.7.3 Requested action aborted; user not authenticated"}      System.Net.Mail.SmtpException


            Dim Message As System.Net.Mail.MailMessage = New System.Net.Mail.MailMessage()

            Dim Smtp As New System.Net.Mail.SmtpClient()

            Dim SmtpUser As New System.Net.NetworkCredential()

            '-- Build Message

            Message.From = New System.Net.Mail.MailAddress("", "My name")

            Message.To.Add(New System.Net.Mail.MailAddress("", "Other Name"))

            Message.IsBodyHtml = False

            Message.Subject = "Come on My Show Soon"

            Message.Body = "Please be a guest on my show. - Larry"

            '-- Define Authenticated User

            SmtpUser.UserName = "" 

            SmtpUser.Password = "Password"

            SmtpUser.Domain = ""

            '-- Send Message

            Smtp.UseDefaultCredentials = False

            Smtp.Credentials = SmtpUser

            Smtp.Host = ""

            Smtp.EnableSsl = True

            Smtp.Port = 25

            Smtp.DeliveryMethod = System.Net.Mail.SmtpDeliveryMethod.Network



        Catch ex As Exception


        End Try

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Question by:cpx_Support

Accepted Solution

Dgleich earned 500 total points
Comment Utility
Hmm Try this code:

Just change it to use diffrent smtp server...
        Dim message As System.Net.Mail.MailMessage

        Dim smtp As New System.Net.Mail.SmtpClient("", 587)

        smtp.Credentials = New System.Net.NetworkCredential("Your gmail username", "password")

        message = New System.Net.Mail.MailMessage("From:", "To:", "Subject", "mail here")

        smtp.EnableSsl = True


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LVL 69

Expert Comment

by:Éric Moreau
Comment Utility
LVL 74

Expert Comment

by:käµfm³d 👽
Comment Utility
Last I heard, Hotmail (and I assume Live as well) didn't have a public interface to send email through code. Because it's web-based, you have to go through browser. I'd love to know otherwise.

Author Comment

Comment Utility
Hello emoreau i looked the link but I think i'm using the correct configuration but doen't work.

Kaufmed, I read that Hotmail now let users send mail throug smtp but in any case I tried with gmail and I'm getting the same error.

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