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<CFMAIL>: detect incorrect TO field


I send email from a page to people who want to register, but sometimes people insert a non-existing e-mail adres.

How can I detect that a mail has bounced? And should the <cfmail>-example I insert result in a mail to myemail@blabla.nl that nobody@1234.QQQ does not exist?


<CFMAIL TO= "nobody@1234.QQQ"
               FROM= "myemail@blabla.nl"
               SUBJECT= "Registration information" >test</CFMAIL>

2 Solutions

go there and try if the little program can help.

The package includes detailed documentation and examples (for most major programming languages) for integrating Advanced Maillist Verify into Internet/Intranet servers based on Active Server Pages technology from Microsoft and ColdFusion from Allaire.


florisbAuthor Commented:
Thanx, but that's not an option.

I could parse the log, but I was hoping for a simple CF solution.

If the email address has a syntax error, eg no @, spaces in the domain name, etc, then Coldfusion will not deliver it, and the mail will be sent to the Undelivr folder.  You could check this from time to time.  Valid mail also ends up here occasionally, eg if your mailserver isn't working.  In which case drag it back into the Spool.  Probably you could set something up (combination of CFSchedule, CFDirectory?) to check this at regular intervals.

If the email address has a valid syntax, eg fdfdsfdsf@hotmail.com, Coldfusion will happily pass it to your mailserver, which will then try to send it.  What happens next depends on the mailserver you are sending to, and probably also your own mailserver.  The From address will probably get a reply back, eg if the address wasn't found at that domain, or the domain name doesn't exist.  

I suspect some mail that doesn't get sent won't give you an error back, but don't have any evidence of this.

I think it is quite impossible. as CFMAIL only check mailid should be valid. means there should be @. in the mail id. but if user type
test@test.com it will accept and cann't catch the error though coldfusion. colfusion server just send the mail to smtp mail server. mail server duty to send mail. wheather mail sent sucessfully colffusion server unaware of it.
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Split duncancumming & dash420

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