Re: How can IIS SMTP be forced to send delivery status notifications?

Tech Tip: Click here to run a free scan for Windows Errors and optimize PC performance

The closest thing that I can think of to do this is to have IIS use a smart host that does not support (has it disabled) ESMTP. However this will mean that no other servers down stream would see the DSN requests.

It's not just that no downstream servers would send DSNs with this setup -- which indeed itself defeats the concept, as you say -- it's also that a relayed DSN would _always_ be sent by the client, since the smart host will always accept the message. It would be useless information. Might as well not announce DSN at the zero-hop and just let the original client take care of it in that case.

Better but still insufficient would be turning off _outbound_ ESMTP to the remote domain and sending regular HELO. At least in this case the client would be actually connecting to the remote MX and could determine whether the message actually got relayed, delayed, or rejected.

But only a custom outbound event sink or batch job would truly fill the bill.

-- Sandy




------------------------------------
Sanford Whiteman, Chief Technologist
Broadleaf Systems, a division of
Cypress Integrated Systems, Inc.
------------------------------------
.

Relevant Pages

  • Re: Server migration - ODBC Connections
    ... You'll need to get the subkey with the DSN names ... We currently have a Windows NT4 domain, with more than 30 windows 2003 ... The windows 2003 member servers are hosting ...
    (microsoft.public.windows.server.migration)
  • The underlying connection was closed: Unable to connect to the remote server
    ... Recently we moved our servers to different location and ip addressed ... have changed,now we started to use dsn everywhere. ... I have an existing web service that uploads excel files to WSS site. ... underlying connection was closed: Unable to connect to the remote ...
    (microsoft.public.dotnet.framework.aspnet)
  • The underlying connection was closed: Unable to connect to the remote
    ... Recently we moved our servers to different location and ip addressed ... have changed,now we started to use dsn everywhere. ... I have an existing web service that uploads excel files to WSS site. ... underlying connection was closed: Unable to connect to the remote ...
    (microsoft.public.dotnet.general)
  • ASP-Application
    ... i have my application running with two servers (iis - sql ... What is securest way to access from the first workstation ... With an DSN or a Connection String? ...
    (microsoft.public.sqlserver.security)