asp cdonts

[rag]

how to identify undelivarable mail through asp script?. I am usiing CDONTS to send mails

[roundel]

Assuming you're using an ASP script on a web page to send some mail, then the likelihood is that the script is simply passing the mail on to the OS's mailing program. That itself would have a hard job telling if something is undeliverable, other than waiting for a potential message bounce.

The only way of doing it would be to implement SMTP sending in the script - easy enough - but still no guarantee that you'd spot every mis-send.