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Open Source and information security mailing list archives
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Date: Wed Jun 7 16:49:29 2006 From: simon at snosoft.com (Simon Smith) Subject: Strange Emails -- What are they? ok, that makes sense... will greylisting counter this? Geo. wrote: >> Alright, >> If this is spam/email harvesting then please explain how it is >> working without any legitimate return path? I understand blasting out >> bunk emails with a legit return path, but these emails have no such >> path. Whats the ditty? >> > > When you try and send email to a non-existant address, the receiving server > rejects during the smtp transaction so a return address is not needed since > the sending bot gets this error message before the transaction is completed. > > Geo. > > _______________________________________________ > Full-Disclosure - We believe in it. > Charter: http://lists.grok.org.uk/full-disclosure-charter.html > Hosted and sponsored by Secunia - http://secunia.com/ >
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