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Protect. Moderate. Purge. Your. Sever.
(lemmy.world)
Please. Captcha by default. Email domain filters. Auto-block federation from servers that don't respect. By default. Urgent.
And yes, to refute some comments, this publication is being upvoted by bots. A single computer was needed, not "thousands of dollars" spent.
This. Defed is not the magic weapon that will solve all your problems. Captcha and email filters should be on by default though.
There are literally globally maintained blacklists of spam email sources. When people lease a static IP address the first thing to do is to check it against the major email blacklists.
It happens to email ALL THE TIME, we just call it something different when it happens to email. Evaluating email for SPAM potential is an every-day common place occurrence, and for at least the past 10 years, a factor called 'domain reputation' is part of the equation. Entire domains get spam blacklisted because they refuse to enforce rules for their users. The end result is that some domains completely refuse to accept mail from some other domains.
Blacklisting an entire domain can and does happen daily. It just doesn't have the same triggering ring as the word "defederation" has.
Did you even bother to read the sidebar and rules before you joined lemmy.world?
Lemmy.world doesn't allow for discrimination, racism, homophobia, transphobia, etc. It doesn't even allow for name calling and requires posts with controversial topics to declare that it is a controversial topic.. In other words, most lemmy servers, especially the lemmy server you have chosen to join, have much stricter moderation rules than reddit, twitter, etc..
If you don't want "snowflake crap", you should probably join another instance, or host your own server where you make the rules.. And you are free to do so, but demanding that a server, which you don't own and have no control over, panders to your specific wishes seems a bit entitled..
One could even say that your attitude seems a bit "snow-flaky"..