Question

The server rejected one or more recipient addresses. The server response was: 550 Relay not permitted

Asked by: JLiz280

I am trying to send an email and got the followng error
"The server rejected one or more recipient addresses. The server response was: 550 Relay not permitted"
I've tried to change some settings in IIS but no luck so far.  Can anyone help please?  Thanks

MailMessage mail = new MailMessage();
        mail.To = "xxxx@xxxxx.net"; //"JLizzi@simonwongeng.com";
        mail.From = "xxxxx@xxxxxxx.com";
        mail.Subject = "Test Email";
        mail.Body = "I am just testing this out to see if it works or not.";
        SmtpMail.SmtpServer = "xxxxxxx.com";
        SmtpMail.Send(mail);

                                  
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Asked On
2009-09-17 at 11:26:12ID24740912
Topic

WebApplications

Participating Experts
2
Points
500
Comments
4

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Answers

 

by: rbarnhardtPosted on 2009-09-17 at 11:28:34ID: 25359336

Is this inbound or outbound mail? If it is outbound, and you are getting a kick back from another mail server, then you may need to be added to their white list.

 

by: lunadlPosted on 2009-09-17 at 11:32:45ID: 25359388

This mail server doesn't allow open relays. You need to send the credentials with your ID. 4Guys will walk you through the whole process if you need it.

http://aspnet.4guysfromrolla.com/articles/080206-1.aspx

 

by: JLiz280Posted on 2009-09-17 at 11:34:56ID: 25359407

So I changed the from and to email address that have the same domain as the SmtpServer, and got the following error
"The server rejected one or more recipient addresses. The server response was: 550 Invalid HELO string (besswe)"

So that means it outgoing mail.  I am sending this via a C# web Application.  I have attached all code in tact below that I am using

MailMessage mail = new MailMessage();
mail.To = "JLizzi@simonwongeng.com";
mail.From = "JLizzi@simonwongeng.com";
mail.Subject = "Test Email";
mail.Body = "I am just testing this out to see if it works or not.";
SmtpMail.SmtpServer = "simonwongeng.com";
SmtpMail.Send(mail);

                                              
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by: JLiz280Posted on 2009-09-17 at 12:06:56ID: 31630205

I needed to add netowrk credientials

20120131-EE-VQP-002

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