In our application we send emails to list of recipients and certain do bounce back because of invalid address. To handle bounce back email messages, we intially thought of implementing VERP. But our application will get dependent to JAMES mail Server and we are developing a generic application that can run on any mail server like Sun one mail sever, James , etc. So we had dedicated account to receives the mails that has bounced like stated below code.
Here comes the other difficulty.Certain Mail Servers bounce a message without any indication of the address the original message was sent to!
One way to avoid this problem is using custom headers[RFC 822].
But we do hear that not all the mail servers support this feature.
So let me know comments regarding the above statement. And also if there any alternative solution that can be applied for handling bounce mesages instead of VERP or custom headers.