Hello,

I get the following error running my application on the internetserver.

The server rejected one or more recipient addresses. The server response was: 553 sorry, relaying denied from your location [216.180.106.13] (#5.7.1)

This is the code I use

        Dim MyMail As MailMessage = New MailMessage()
        MyMail.From = sendFrom
        MyMail.To = sendTo
        MyMail.Subject = mailSubject
        MyMail.Body = mailBody
        MyMail.Cc = sendCC

        SmtpMail.SmtpServer = "mail.crestcomputers.com"
        SmtpMail.Send(MyMail)


It can only send mail to adresses known on the server.
I'm using MS VS.Net 1.0

Thank you


Frank Vandeven
Belgium

__________________
Frank Vandeven
Belgium

go in IIS and add your Ip in relay it will work fine...:)

The problem is that the mail server sees your message as a mail relay (hence the error message). Usually, to send a message thru a properly set up mail server (i.e., no open relay) you need to connect to it under 1 of three conditions:
1) You are connecting to a mail server from within the mail server's own internal network. This is usually the case with a corporate mail server on the corporate LAN/WAN.
2) You have connected to this mail server already using POP to check a POP mailbox and logged into it successful. This is basically IP authentication.
3) You log in using SMTP authentication to prove you have the authority to send messages. I don't believe that the .NET SMTP functionality has this functionality.

Dear Planoi,

I think i'm in sittuation 2.
How can I clear this problem.
I allready used my IP address instead of mail.xxx.be but it aint working.

Thank you.


Frank Vandeven
Belgium