On Fri, 14 Oct 2016 23:24:21 +0200 Petr Bena <petr@bena.rocks> wrote:
> How does DKIM prevent others from spoofing your mail address? People > will still receive unsigned e-mails that look like they were sent by > you even if they were not. DKIM by iself does not. DKIM plus DMARC sort-of does. (I say "sort-of" because most mail readers hide the From: header address and only show the full name.) > P.S. this is extremely easy to implement from programmer point of > view, all you need to do is take existing SPF plugin and just have it > verify SPF against e-mail that is in From header. You will have lots of false-positives. I know this from experience. Regards, Dianne.
