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CDO mail failure on Exchange Server

I use the method below to send emails from an asp page that's part of a
web application:

<!--METADATA TYPE="typelib" UUID="CD000000-8B95-11D1-82DB-00C04FB1625D"
NAME="CDO for Windows 2000 Library" -->
On error Resume Next
Dim cdoConfig, cdoMessage

Set cdoConfig = Server.CreateOb ject("CDO.Confi guration")
With cdoConfig.Field s
.Item(cdoSendUs ingMethod) = 2
.Item(cdoSMTPSe rver) = "MailServer.Nam e.com"
.Item(cdoSMTPSe rverPort) = 25
End With
Set cdoMessage = Server.CreateOb ject("CDO.Messa ge")
With cdoMessage
Set .Configuration = cdoConfig
.From = "Me<ma********@ mymail.com>"
.To = "You<ma******** ***@somemail.co m>"
.Subject = "Surprise!"
.TextBody = "Helloooo.. ."

If err.number Then
Response.Write( "Houston! We have a problem...")
End If
End With
Set cdoMessage = Nothing
Set cdoConfig = Nothing

On the production server (Windows 2003 Server) everything works fine
and I don't have a problem sending the mails from the application.
However, I recently upgraded my development box to Windows XP Pro SP2
and the code fails with with the following error:

CDO.Message.1 (0x80040213)
The transport failed to connect to the server.

The from and to email addresses that I'm using are valid and part of my
domain (not a Hotmail or other freemail address).

The SMTP service is up and running on the dev box.

I also tried replacing the mail server name with the IP address of the
mail server, but again it's failing.

We are running Exchange Server for email and if I change the
cdoSendUsingMet hod to 3 (for cdoSendUsingExc hange) the mail is sent
correctly without errors.

Will I not able to use the cdoSendUsingPor t method to send the email if
I'm on Exchange? Am I forced to use cdoSendUsingExc hange?


Jul 22 '05 #1
0 2122

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