Ralph Seichter: > * Matus UHLAR: > > > On 27.03.20 10:46, SysAdmin EM wrote: > > > Is it possible to sign smtp from with DKIM? I clarify that > > > I am not talking about the header from. > > > > no, only headers can be signed. > > Message headers and body, actually. You are of course right in that the > envelope data (SMTP session) is not DKIM signed.
This is the main difference between DKIM (authenticates headers/body)
and SPF (authenticates SMTP MAIL FROM and SMTP client IP address).
Wietse
