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Bitcoin Optech Newsletter #276bitcoinops.org/en/newsletters/2023/11/08/
1226 sats \ 2 comments \ @ssaurel 8 Nov 2023 bitcoin
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100 sats \ 1 reply \ @evanbaer 8 Nov 2023
Interesting note in the link re: mailing list hosting, on running an independent mail server:
If you have never operated your own MTA you have no idea how difficult it is to keep secure and functional in the face of numerous challenges to deliverability. Anti-spam filtering is essential to prevent forwarding spam. The moment you forward even a single spam message you run the risk of the server IP address being added to blacklists.
[-] The problem of spam filtering is so bad that most IP addresses are presumed guilty even if they have no prior spam history, such as if their network or subnetwork had spam issues in the past.
There's a cautionary tale there. I can remember when most ISP's ran their own mail server, now it's in the hands of trusted 3rd parties.
Related: https://cfenollosa.com/blog/after-self-hosting-my-email-for-twenty-three-years-i-have-thrown-in-the-towel-the-oligopoly-has-won.html
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407 sats \ 0 replies \ @petertodd 8 Nov 2023
The problem of spam filtering is so bad that most IP addresses are presumed guilty even if they have no prior spam history, such as if their network or subnetwork had spam issues in the past.
That's overstated. That applies to consumer Internet connections. But it's not hard to find professional server hosting that is not blacklisted. It's also very easy to use third parties like authsmtp to handle IP reputation.
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