> On 4 Jun 2020, at 16:55, Robert L Mathews via mailop <mailop@mailop.org> > wrote: > > On 6/4/20 2:50 AM, Laura Atkins via mailop wrote: >> You do know that spammers run ESPs and consider themselves reputable, >> yes? How useful will the header be when they start putting it in even >> when the mail isn’t confirmed? > > My point was that if a large ESP started doing this, *and* the ESP did > it reliably and honestly, *and* receiving entities noticed and believed > that the ESP did it reliably and honestly, then a receiving entity could > decide to start weighting that header positively for mail from that ESP. > > I wasn't suggesting that anyone would trust such a header without strong > evidence that a particular ESP was doing it reliably and honestly.
What is your mechanism for that trust? If the answer is “someone will figure it out” then there’s no point in even suggesting such a header. No one will bother implementing such a header until there’s a mechanism and no one is going to spend their time figuring out how to make your suggestion work. I will also say there is such a thing as spam to a COI address. Like, I confirmed my subscription to one retailers list and they start mailing me advertising for a different brand of theirs (has happened). Or I confirm my subscription to one company and they go out of business and sell off their COI list to the highest bidder (has happened). Or I confirm my address for one type of email and the brand decides to expand their marketing and send me mail for a completely different thing (has happened). Or I confirm my address and then unsubscribe but the company changes ESPs and forgets to take their unsub list with them. The underlying issue is unless what you’re proposing can address those very normal and common cases, there’s no point in the header itself. laura -- Having an Email Crisis? We can help! 800 823-9674 Laura Atkins Word to the Wise la...@wordtothewise.com (650) 437-0741 Email Delivery Blog: https://wordtothewise.com/blog
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