On 3/22/23 12:57 AM, Evan Burke wrote:
Murray's answers are largely correct. I'll fill in some additional
detail below.
On Fri, Feb 17, 2023 at 11:10 AM Michael Thomas <m...@mtcc.com> wrote:
> 3. Do senders filter outbound traffic for spam?
> 4. Do spammers who get a piece of email signed by a sender also send
mail to target domains to see if it passes their filters?
Yes and yes. The testing behavior in #4 is also used on outbound filters.
> 12. Do spammers provide an unsubscribe link which is typical on
normal email blasts? If not, is that unusual and/or against the rules
of the bulk provider? If so can the sender keep track of that?
> 13. Can senders verify that opt-out links actually work especially
for new accounts?
You're giving DKIM replay spam much more credit than it deserves. It's
bottom of the barrel stuff - scams, fraud. It has no use for an
unsubscribe link. Also, nearly all email marketing platforms provide
an integrated unsubscribe link as part of the platform functionality;
some go so far as to prohibit 3rd party unsubscribe links entirely.
The reason I ask is because if it's uncommon to not provide unsubscribe
links, that's a signal that something might be wrong. That's especially
true for bulk senders who could/should require valid unsubscribe links.
Now whether that's hard to police is another matter, but it would be
good to get that out in the open.
Mike
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