CDO Mail sending error

Discussion in 'ASP .Net' started by Guest, Jul 26, 2006.

  1. Guest

    Guest Guest


    Im getting the following error when mail is sent from ASP.NET 2.0 website.
    CDO.Messaging componenet is used for sending mail.

    The message was not able to be transmitted to the SMTP server. The
    forwarding error code is 0x800ccc67. The response from the server is as
    follows. 421 [XMail 0.70 (Win32/Ix86) SMTP Server] service not available,
    closing transmission channel

    Any suggestions/help would be appreciated.


    Guest, Jul 26, 2006
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  2. re:
    That means that the SMTP server is not available.
    Check to see if it's running and if the port is available.

    Why are you using system.web.mail, instead of the 2.0-native ?

    Juan T. Llibre, Jul 26, 2006
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  3. Guest

    Guest Guest


    Thanks for prompt response.

    The scenario is that the mail server is working fine, because it is used for
    outlook express / outlook mail clients also. In these clients the mail is

    But when I use these mail server in CDO.messaging function, i get the error.

    It was working earlier, but suddently started giving the error.

    any inputs will be welcome.



    Guest, Jul 26, 2006
  4. Guest

    sloan Guest

    I have a 2.0 downloadable code example at

    I have the 3 methods of authentication in the example as well.

    You should post the servername/ip of the smtp machine youre trying to use

    sloan, Jul 26, 2006
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