My domain is on Windows Server 2003 and I have had to make changes to the code of CDOSYS so that work according to me has indicated my technical support:

They first said the following thing to me:

I asked to them:

- The data of my forum are:

- SmtpServerPort = 25

- SendUsing = 2

- I must change the SmtpServerPort to 2500?

And its answer was:

- Yes the relay port have to be changed to 2500.  It is to make possible for Microsoft SMTP Server to work together with Mailenable SMTP (which uses the default port 25). 

When changing this port followed without working, so in the end I had to change the code:

Original code in functions_send_mail.asp:

'-------------------------------------------
'       With objCDOSYSCon
'           'Out going SMTP server
'           .Fields("http://schemas.microsoft.com/cdo/configuration/smtpserver") = strIncomingMailServer
'           'SMTP port
'           '.Fields(" http://schemas.microsoft.com/cdo/configuration/smtpserverpor t")  = 25
'           'CDO Port
'           .Fields("http://schemas.microsoft.com/cdo/configuration/sendusing") = 2
'           'Timeout
'           .Fields(" http://schemas.microsoft.com/cdo/configuration/smtpconnectio ntimeout") = 60
'           .Fields.Update
'          End With
'-----------------------------------------

New code:

     With objCDOSYSCon.Fields
     .Item("sendusing") = 2
     .Item("smtpserver") = strIncomingMailServer
     .Item("smtpport") = "2500"
     .Update
     End With
'-----------------------------------------------

And now send mail work fine.

Commentary ?

Manbos

http://www.manbos.com