personal anecdote: some of the brands listed are more spammy than a
clingy ex.
general rule: just because <ENTITY> had a legit business interaction
with <RECIPIENT>, it does not give <ENTITY> permission to pester
<RECIPIENT>.
some of those entities have made bad hiring and this is the consequence.
at least for now, most of those entities have kept the sewage stream
separate from the valuable/transactional emails that recipients want.
however, I have observed entities where Pointy-Haired Boss has prevailed
over Dilbert and they have used the same SMTP client to send ham and
spam. No wonder that recipients who can turn vegeterian and these
entities sell less ham than they could if they would behave and stop
PHB's diarrhea.
My inbox, my rule. some of them:
- don't send me customer surveys. blocked
- don't send me calendar reminders. blocked.
- don't send me subscription renewal reminders. blocked.
- don't send me status updates I have not asked for. blocked.
or the general rule: opt-in, not opt-out. separately, for each and
every class of new annoying messaging that the PHB of "customer
engagement" can fart, with the default being NO.
Yuv
On 2026-09-29 03:26, ndrs via mailop wrote:
Any comment to this?
On Saturday, September 19th, 2026 at 5:14 AM, ndrs via mailop
<[email protected]> wrote:
I have decided to not accept any SMTP connections from the Google cloud
infrastructure (AS396982).
I block them completely on my system. There is nothing good inside that
infrastructure.
Note, that they have two AS assigned tho their cloud infrastructure:
- AS396982
- AS19527
How can you do that confidently? Some names in that AS that jump out at me
include the following list. Have you confidently documented that no good mail
comes out of that AS before blocking? Why not block any host identified as
googleusercontent.com instead? Do you service a variety of users who want mail
from lots of different places?
Uber Technologies, INC
Cogent Communications
Groupon, Inc.
Priceline.com
Salesforce, Inc
FedEx
U.S. Dept. of Health And Human Services
The Dun & Bradstreet Corporation
Palo Alto Networks, INC
S&p Global Inc.
US U.S. Securities & Exchange Commission
Shopify, Inc.
The Home Depot Inc.
Federal Deposit Insurance Corporation
US Chicago Mercantile Exchange
Crowdstrike
Mailspike
Nokia of America Corporation
Ericsson Ab
Honeywell International Inc.
US Johnson & Johnson
Calix, Inc.
Dow Networks
Credit Karma, Inc.
Sendinblue
Cisco Webex LLC
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