If you'd like to know how Gmail works, the first step is Brad's original
paper on that:
https://ai.google/research/pubs/pub45
The system has evolved and become more realtime, larger, maintains
reputations on many more features, algorithms tuned, and various ML added
to the mix for some edge cases, but the system would still be recognizable
to him today.
As for size, I'm sure that there are a bunch of benefits of scale, but I'd
like to think we had better antispam even when we were much smaller than
the competition.
If anything, we're now such a target that entire so operations focus
explicitly on matching us. If spam seems like a solved problem, that's
only due to dedicated work. I guess the flip side of the benefits of scale
is that the antispam folks needed scales very sublinearly with the amount
of users covered.
Brandon
On Sun, Sep 29, 2019, 12:04 PM S Moonesamy <sm+ietf(_at_)elandsys(_dot_)com>
wrote:
Hi David,
At 05:56 AM 29-09-2019, David MacQuigg wrote:
Changing the subject to minimize discussion of technical detail. I
would just like to hear from others with more experience - which of
the existing services are doing it right, and how do they do
it? The goal is near-zero spam in my inbox (1% is my threshold of
annoyance), and no lost emails. Also, please disclose if you have
any connection with the service.
I have been using gmail for the last few years. No connection other
than as a client. Spam in my inbox is maybe one in 200. I have
noticed one or two lost emails in the last year. Before that I was
not aware of any. Note: I don't count as spam any that appear
The various mechanisms discussed on the thread, and some others
mechanisms such as content filtering, allow you to get close to that
1% threshold. You would have to assess whether those two lost emails
are significant. The problem with lost emails is that they end up
being the ones which you might consider as important if you are using
email for work. There are other mechanisms which can be added. They
come with some disadvantages such as data exfiltration. You would be
giving some other entity visibility into your business.
The considerations are different for a home user. For example, data
exfiltration might not be an issue. Profiling might be an
issue. You can find out more about that if you are using gmail:
<https://takeout.google.com/settings/takeout>https://takeout.google.com/
Regards,
S. Moonesamy
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