>>>>> "Jan" == Jan Niehusmann <[EMAIL PROTECTED]> writes: Jan> Time will tell. I fear that some day, the only way to use Jan> email productively is to block all email with invalid sender Jan> adresses. And I don't know a way do valdiate a (not yet Jan> known) address but to try it and send a reply. If you Jan> combine that with some autoresponders on both ends, no human Jan> interaction would be needed, so annoyance should go down.
The above is based on the false premise that those who send spam are incapable of sending it with (forged) real email addresses. They already have lots of them to choose from. -- Stephen "A duck!"