CDOSYS / IIS7 / WIN 2008 server - transport error

Starting Member

Posts: 2

I am trying to set up email configuration with CDOSYS, with a remote SMTP server. My webserver is windows server 2008 64 bit,
the version of IIS is 7.5.7600.16385.
My first question is: if sending mail with CDOSYS to a remote smtp server, do I still need the local smtp service running? For security reasons my company does not want the local smtp service running on the web server that the forum is installed on

My second question is: I'm not sure how to get past the transport error I am getting when CDO attempts to send the mail. Networking has assured me this should not be a firewall issue. (and yes smtp for the remote server is listening on port 25). There are other .NET programs running on the same webserver I have the forum installed on that send emails successfully using .NET, with the same configuration (port, ip address etc) as I am using with the forum.
Any ideas on what I might check on? (I have tried this with the local smtp service both running and not running, I have tried with various combinations of security (0 - no authentication, 1 clear text with my email and password, and 2), and still the transport error. I've also been fiddling with IIS settings and still the transport error.
Thanks in advance for any help I can get on this. If I can't get email to work I have to abandon this and find another solution.

on the web server this is my email configuration:
email component: CDOSYS (IIS5/5.1/6) - this is the only component available in the dropdown. email mode: on
email server address 99.9.9.99 (the ip address of the remote smtp server)
require unique email: on
email validation: on
filter: off
restrict registration: off
require logon for sending email: on
number of posts: 0

I have put the following debug statements in inc_mail.asp to
try to figure out why mail is not getting sent:

Code:


	case "cdosys"
                
	        Set iConf = Server.CreateObject ("CDO.Configuration")
        	Set Flds = iConf.Fields 

	        Flds("http://schemas.microsoft.com/cdo/configuration/sendusing") = 2              '2 - remote smtp server, 1 local smtp server
		Flds("http://schemas.microsoft.com/cdo/configuration/smtpserver") = strMailServer 'from email configuration
		Flds("http://schemas.microsoft.com/cdo/configuration/smtpusessl") = False
		Flds("http://schemas.microsoft.com/cdo/configuration/smtpserverport") = 25
		Flds("http://schemas.microsoft.com/cdo/configuration/smtpconnectiontimeout") = 60
		Flds("http://schemas.microsoft.com/cdo/configuration/smtpauthenticate") = 0        'no authentication required, 1 is clear text, 2 is current process
		Flds.Update

                Set objNewMail = Server.CreateObject("CDO.Message")
                Set objNewMail.Configuration = iConf 

                'Format and send message
        	Err.Clear 

		objNewMail.To = strRecipients
		objNewMail.From = strSender
		objNewMail.Subject = strSubject
		objNewMail.TextBody = strMessage

		On Error Resume Next
                objNewMail.Send
                If Err <> 0 Then 
                        Response.Write "There was an error in send..."
                        Response.Write "Error Number" & Err.Number & "<br>"
                   	Response.Write "Error Description" & Err.Description & "<br>"		
                   	Response.Write "Source" & Err.Source & "<br>"
                        Response.Write "strMailServer: " & strMailServer & "<br>"

			Err_Msg = Err_Msg & "<li>Your request was not sent due to the following error: " & Err.Description & "</li>"
		else
			Response.Write "Your mail has been sent..."
		end if

This is the error I get :

Code:

There was an error in send...Error Number-2147220973
Error DescriptionThe transport failed to connect to the server. 
SourceCDO.Message.1
strMailServer: 99.9.9.99 (where this is the ip address of the remote smtp server)

This is what I get from the IIS log:

Code:

2011-07-25 13:28:06 99.1.1.99 GET /KBForum/pop_mail.asp id=3 80 - 99.1.1.99 Mozilla/4.0+(compatible;+MSIE+7.0;+Windows+NT+6.0;+Trident/4.0;+SLCC1;+.NET+CLR+2.0.50727;+.NET+CLR+3.0.30618;+.NET+CLR+3.5.30729;+.NET4.0C;+.NET+CLR+1.1.4322) 200 0 0 281

2011-07-25 13:28:08 99.1.1.99 POST /KBForum/pop_mail.asp mode=DoIt&id=3 80 - 99.1.1.99 Mozilla/4.0+(compatible;+MSIE+7.0;+Windows+NT+6.0;+Trident/4.0;+SLCC1;+.NET+CLR+2.0.50727;+.NET+CLR+3.0.30618;+.NET+CLR+3.5.30729;+.NET4.0C;+.NET+CLR+1.1.4322) 200 0 0 468

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