Email bounce between 2003 and Exchange -- iis smtp nntp

tshad
10/7/2005 8:34:18 AM

I am running on IIS6 on a Windows 2003 Web Edition Server. We also have an
Exchange Server 2000 running on W2K Server.

I thought I was using CDOSYS, but now I am thinking I am not. We have a
site using asp that does not seem to have the problem I am now experiencing.
They are using CDOSYS.

On my site, which is asp.net we are doing something like:

Imports System.Web.Mail

Dim Message As New MailMessage()
message.To = SendTo
message.From = SentFrom
message.Subject = subject
message.Body = strInput
if attachment <> "" then message.Attachments.Add(New
MailAttachment(attachment,MailEncoding.Base64))
message.BodyFormat = MailFormat.Html
SmtpMail.SmtpServer = mailServer
smtpMail.Send(message)

mailServer is set to "localhost".

My problem seems to be from aliases set up on the 2000 server.

If I have a user set up as tom@company.com and also a user setup as
tom@website.com with is just an alias to tom@company.com, this causes a
problem if my message.To address above is sent to tom@website.com. If it
gets sent to tom@company.com, there is no problem.

Also, if I send it to tom@website.com from outlook, it works fine.

But if IIS sends it to the alias, I get the following message:
************************************************************************************************
The following recipient(s) could not be reached:

Jay Norton on 10/3/2005 5:49 PM
A configuration error in the e-mail system caused the message to
bounce between two servers or to be forwarded between two recipients.
Contact your administrator.
<MARS.ftsolace.com #5.3.5>
**************************************************************************************************

What is causing the problem and how do I resolve it?

Thanks,

Tom

P C
10/9/2005 12:30:26 AM

Actually that problem can also happen with outlook. In our case, we saw
this happening with certain users when they updated the WAN to active
directory.
...PC

[quoted text, click to view]

tshad
10/10/2005 8:06:18 AM

[quoted text, click to view]

Well, we are running with AD. But Outlook doesn't seem to have a problem on
our end.

Did you find out how to solve the problem for users that did see that
problem?

Thanks,

Tom
[quoted text, click to view]

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iis smtp nntp : Email bounce between 2003 and Exchange