On 16. Juli 2014 07:31:50 MESZ, Viktor Dukhovni
<ietf-dane(_at_)dukhovni(_dot_)org> wrote:
Is there quantitative evidence that preventing spoofing of the
"From" address reduces the efficacy of phishing?
At the time it is no good idea to hardly block mails with senders which seem
"spoofed" (i.e. by SPF, DKIM, DNSSEC, MX and/or "similiar") because there is
still to much ham in the world affected by that and as long as such solutions
are not widely established spammers/hackers find enough alternatives.
And even if the address is "hardly bound" to a MTA by any solution - we see
still scenarios in practice working around that - i.e. by tricking / using the
"true" mailserver i.e. by web hijacking or client bots with access to them.
cheerioh,
Niels.
--
Niels Dettenbach
Syndicat IT&Internet
http://www.syndicat.com