hello,

First of all i want to thank you for taking the time to read my topic 

I have started a project for school. Im building a Exchange 2013 environment.
I did some configuration's and now i want to test the mail. I can mail Internal but not external.
when i go to testconnectivity.microsoft.com and try test inbound SMTP mail flow, it fails.
Its giving me the message : relay acces denied.
If been troubleshooting/searching for 2 days now. i cant FIGURE it out. please can someone HELP me fix this problem?

Here the full error details:

Attempting to send a test email message to [email protected] using MX fuzeice.nl.
    Delivery of the test email message failed.
    
   Additional Details:
    
The server returned status code 454 - Client does not have permission to submit mail to this server. The server response was: 4.7.1 <[email protected]>: Relay access denied
Exception details:
Message: Client does not have permission to submit mail to this server. The server response was: 4.7.1 <[email protected]>: Relay access denied
Type: System.Net.Mail.SmtpException
Stack trace:
at System.Net.Mail.RecipientCommand.CheckR esponse(SmtpStatusCode statusCode, String response)
at System.Net.Mail.RecipientCommand.Send(SmtpConnection conn, String to, String& response)
at System.Net.Mail.SmtpTransport.SendMail(MailAddress SENDER, MailAddressCollection recipients, String deliveryNotify, Boolean allowUnicode, SmtpFailedRecipientException& exception)
at System.Net.Mail.SmtpClient.Send(MailMessage message)
at Microsoft.Exchange.Tools.ExRca.Tests.Sm tpMessageTest.PerformTestReally()
Elapsed Time: 981 ms.



Again thanks for READING this.

I hope some can help me soon. Client does not have permission to submit mail to this server

Relay access denied

Permissions issue is the first issue to clear up. Perhaps a password mismatch?

Since this is a school project, can the teacher of the course be of assistance?E-mail servers don't typically allow remote relay by default.

For Exchange you need to create a new Receive CONNECTOR that allows anonymous relay.
Source