Small mail server best current practices

Re:Small mail server best current practices by peterwwillis on Sunday July 26, 2020 @11:13PM (#23961945)

> 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.

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Re:Small mail server best current practices by vitaemec on Monday July 27, 2020 @01:29AM (#23962466)

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

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.

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