Has anyone used the above before? Is it any good or is it a spy ware?
I am a bit interested in what mechanism it uses to 'bounce' an email back to a spammer. The company claims "The message will be bounced back to the sender and they will receive an email similar to a returned mail message you would receive if you sent an email to a wrong address.
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How does it work? It says it uses the ISP's postmaster account? Is it doable using SMTP or ESMTP? Or is it using ESMTP relaying in the format ""@ONE,@TWO:JOE@THREE" as specified in RFC821 ? Anyway, I thought that is for relaying to remote SMTP server, still don't know how it could 'use' the postmaster account without having the first Received From line showing up as saying "Received From : myISPUserIP by ISPSmtpServer"
I am a bit interested in what mechanism it uses to 'bounce' an email back to a spammer. The company claims "The message will be bounced back to the sender and they will receive an email similar to a returned mail message you would receive if you sent an email to a wrong address.
"
How does it work? It says it uses the ISP's postmaster account? Is it doable using SMTP or ESMTP? Or is it using ESMTP relaying in the format ""@ONE,@TWO:JOE@THREE" as specified in RFC821 ? Anyway, I thought that is for relaying to remote SMTP server, still don't know how it could 'use' the postmaster account without having the first Received From line showing up as saying "Received From : myISPUserIP by ISPSmtpServer"