On 4/13/2022 6:58 PM, Jarland Donnell via mailop wrote:
Out of the 140,244 emails delivered to Google by my customers today,
not a single one has complained of issues with Google rejecting
legitimate email.
Even so, keep in mind the following:
(1) Their most egregious false positives - ARE delivered - they return a
"250 OK" response - but then Google's spam filter does a 2nd round of
spam filtering - AFTER the SMTP connection has completed - and that's
where MOST of their most egregious false positives occur - partly
because the sender THINKS that their message was delivered.
(2) These are OFTEN the types of mistakes that are most often unknown to
the sender - since the sender then never gets back a non-delivery
notification. (and unfortunately not everyone is savvy and consistent
with requesting and monitoring for "read receipts" for important
hand-typed emails!) So then they don't "complain" to their mail hoster
about a problem they don't even know exists! (so their lack of
"complaints" is an inadequate/flawed measurement of success in this case!)
For example, I have a close relative who was the CFO of a company a
couple of years ago (with hundreds of millions in annual sales) - before
he switched to another company - and what I'm about to describe occurred
AFTER Google's huge move to going "all in" on A.I. for email processing
- and so this company almost lost the renewal of a multi-million dollar
deal because their client's hand-typed messages were getting 250 OK
answers, but were spam-filtered after-the-fact by Google. The client
thought that they were getting dissed by their vendor - since they
didn't get non-delivered notifications for those emails - and so this
client was already in the process of looking for a new vendor when
someone at my relative's (former) company spotted the false positives
from this client in the spam folder at the last "final hour" and just
barely saved the deal.
Of course, that's anecdotal and ALL spam filters have occasional
egregious false positives. But it's just that your "delivered to Google"
might not mean as much as you thought that it meant! It's possible that
a few of those 140,244 emails might not have made it to the inbox!
--
Rob McEwen, invaluement
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