Problem sending email to address of different domain

[moondaddy]

I have some code in a web app (asp.net 2.0) and am trying to send an email
to 2 different recipients. The first one works and the second one fails.
the first email address is of the same domain as the web app (myAp.com,
(e-mail address removed)) and the second one is of a different domain
([email protected]). Why would the 2nd address fail? here's the error msg

Mailbox unavailable. The server response was: not local host
OtherDomain.com, not a gateway at
System.Net.Mail.SmtpTransport.SendMail(MailAddress sender,
MailAddressCollection recipients, String deliveryNotify,
SmtpFailedRecipientException& exception)

and here's the code:

For Each sAddress In adrses
Dim msg As System.Net.Mail.MailMessage = New
System.Net.Mail.MailMessage()
msg.To.Add(sAddress)
msg.Subject = Caption
msg.Body = "New Data Element Has Been Submitted." & vbNewLine &
vbNewLine & data
msg.From = New System.Net.Mail.MailAddress("(e-mail address removed)")
mailSvr.Send(msg)
Next sAddress


How can I send email to other address such as customers?

Thanks.

 

[Walter Wang [MSFT]]

I agree with Ciaran that you need to config relay restrictions in IIS
manager:

1) open "Default SMTP Virtual Server" properties dialog
2) in "Access" tab, click "Relay" button


Sincerely,
Walter Wang ([email protected], remove 'online.')
Microsoft Online Community Support

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[moondaddy]

Thanks Walter, now I know what I need to do.

 

[Walter Wang [MSFT]]

Thanks for the follow-up. Please feel free to reply here if there's
anything I can help.

Regards,
Walter Wang ([email protected], remove 'online.')
Microsoft Online Community Support

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