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I disagree. The big email players are accepting mail from universities and large companies with misconfigured email servers. If you use the same rules that Goo

I disagree. The big email players are accepting mail from universities and large companies with misconfigured email servers. If you use the same rules that Google and Microsoft use to refuse emails, you will be bouncing emails from valid domains. If you don't apply them, you end up accepting spam. The big players are able to deal with the spam using specialised teams and I suspect advanced algos including machine learning. IF the big players applied their famous rules to everybody equally, everybody, including universities, big companies etc... Would quickly configure thier mail servers properly, which WOULD reduce spam, possibly eliminate it. Being able to keep inboxes fairly free of spam in a world full of spammers is what distinguis big email providers and enable them to sell their services.

peterwwillis 6y ago
> The big players are able to deal with the spam using specialised teams and I suspect advanced algos including machine learning. I remember when I imagined big companies might use their considerable resources to put together something like that. Then I found out it's just a handful of random engineers cobbling together crap and hiding it behind a fancy domain name. It is probable that Office365's entire spam filtering system is a very large and ugly spreadsheet that gets passed around between a few teams using a ticketing system.
- vitaemec 6y ago
  I used to work on the O365 antispam team, and I'm not sure how much I'm allowed to say in public, but I'm pretty sure I can publicly say "a very large and ugly spreadsheet that gets passed around between a few teams using a ticketing system" is not accurate. Relevant wikipedia page: https://en.wikipedia.org/wiki/Exchange_Online_Protection https://en.wikipedia.org/wiki/Exchange_Online_Protection Originally, the product started out as an acquisition, and there's still some legacy code that references the old Forefront name. There's about 50 people on the team. DKIM/DMARC/ARC is worked on by two engineers.

peterwwillis 6y ago

> The big players are able to deal with the spam using specialised teams and I suspect advanced algos including machine learning. I remember when I imagined big companies might use their considerable resources to put together something like that. Then I found out it's just a handful of random engineers cobbling together crap and hiding it behind a fancy domain name. It is probable that Office365's entire spam filtering system is a very large and ugly spreadsheet that gets passed around between a few teams using a ticketing system.

vitaemec 6y ago
I used to work on the O365 antispam team, and I'm not sure how much I'm allowed to say in public, but I'm pretty sure I can publicly say "a very large and ugly spreadsheet that gets passed around between a few teams using a ticketing system" is not accurate. Relevant wikipedia page: https://en.wikipedia.org/wiki/Exchange_Online_Protection https://en.wikipedia.org/wiki/Exchange_Online_Protection Originally, the product started out as an acquisition, and there's still some legacy code that references the old Forefront name. There's about 50 people on the team. DKIM/DMARC/ARC is worked on by two engineers.