On Mon, Apr 3, 2023, at 8:30 PM, Douglas Foster wrote:
> I described my algorithm because I am surprised that some of these
> sub-optimal filtering problems exist.
I would have thought the DKIM domain to be a better authenticated identifier
than MailFrom domain; messages from ESPs are typically
I described my algorithm because I am surprised that some of these
sub-optimal filtering problems exist.
As a corollary: In an American bar, the bouncer checks I.Ds. on the way
in, so that the bartender does not have to check IDs on every drink.
Similarly, I assume that a major ESP has
On Sat, Apr 1, 2023, at 9:41 PM, Douglas Foster wrote:
> My approach to ESP traffic is simple. I assume that the ESP has authorized
> the account indicated by the From address, so I don't worry about Sender
> Authentication as long as the message passes SPF based on the ESP domain.
> DMARC
