From: dane [mailto:[email protected]] On Behalf Of Jiankang Yao >> for OPENPGPKEY/SMIMECERT zones, operators could (maybe SHOULD) use >> NSEC/NSEC3 "narrow" signing to prevent "zone-walking". > >email addresses are not secret. That is not the privacy you can protect >at all. Anyone can either do a internet search or just attempt to >deliver an email to figure out if the email address is valid. > > >if there is a "email zone walking", the email spammer can use this feature to >get the valid addrees easily and send trash emails. >If we hope to prevent the spammer from getting the email address easily, the >email address should be regarded as secret. This is, IMO, a nightmare when using IPv6.... spammers sending email with new IP and sometimes they know how to bypass the content filtering antispamming ...
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