Suppression lists. All the big transactional email providers have them.
We do it with feedback loops, if someone reports a legitimate and
desired email as spam then we block them from our entire platform. The
person who wants to send mail to them can try to reason with them and
get the block removed, but very rarely does anyone care to (because
they're not happy about their recipient reporting them as spam either).
Of course, you have to consider the source as well. For example, if we
get a feedback loop message from Fastmail we don't add it to the
suppression list. Because their default behavior is that they forward
everything they filter to their user's spam folder back to the feedback
loop. So a user doesn't have to do anything for this to happen other
than not change default settings. Comcast users frequently claim they're
just deleting the email when it comes in over the feedback loop (often
months later) but I don't buy it, I still put those on the suppression
list.
On 2023-08-10 11:07, Al Iverson via mailop wrote:
Doesn't seem like a new problem, really. Any user can report spam on
anything they want, and I'm not aware of any mechanism to suppress
stupid reports from the sending side.
On Thu, Aug 10, 2023 at 10:35 AM Benoit Panizzon via mailop
<mailop@mailop.org> wrote:
Hi Team
I would be very happy, if anymone at microsoft could get
in touch with me, we probably get more than 90% false positives from
the microsoft spam report robot.
Newest crazy addition!
exam...@outlook.com is sending an email indicating request for a
delivery report.
Our server AFTER delivering the email, obliges:
From: <mailer-dae...@idefix.imp.ch> (Mail Delivery System)
To: exam...@outlook.com
Successful Mail Delivery Report
This is the mail system at host idefix.imp.ch.
Your message was successfully delivered to the destination(s)
listed below. If the message was delivered to mailbox you will
receive no further notifications. Otherwise you may still receive
notifications of mail delivery errors from other systems.
The mail system
=== snip ===
exam...@outlook.com is reporting this as spam. We get a complaint from
microsoft asking for us to suspend 'mailer daemon' for sending
unsolicited emails. Doh!
Microsoft, could you please just block customers like this one who
repeatedly abuse your spam complaint machinery?
Or build some simple rules to redirect 'dubious' spam reports to be
reviewed by a human before clogging abuse desks of fellow ISP with
such
reports?
Dubious could be:
* from a 'mailer daemon'.
* containing other signs that it is some sort of bounce.
* Quoted text matching an email recently sent by your customer.
etc....
I also wonder if you told your customers, confirming to GDPR, that you
are disclosing their mail content to the abuse desk of any ISP around
the world. We repeatedly get all sort of emails reported as spam,
which
I would consider to contain very sensitive information like salary
information etc.
Mit freundlichen Grüssen
-Benoît Panizzon-
--
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