On 16. Juli 2014 07:31:50 MESZ, Viktor Dukhovni <ietf-dane@xxxxxxxxxxxx> 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