Interesting history and analysis of SMTP’s history. How can we prevent fedi and other open protocols from suffering the same fates?

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17 points

Defederating bad actors/spammers should in theory be good enough? Domains aren’t free and I don’t think it’s worth it for them to buy a new domain to just be able to spam for a short time again.

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29 points
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Domains aren’t free and I don’t think it’s worth it for them to buy a new domain to just be able to spam for a short time again.

Literally what e-mail spammers do.

Agreed defederating can help solve obviously malicious instances, it doesn’t solve spammers abusing good instances. E-mail and AP are very similar at a protocol structure level.

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14 points

Is it though? Don’t email spammers just spoof the domain or send without a domain? I’m not entirely sure if that’s different from how the fediverse works. I’m not too knowledgeable about this topic.

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12 points

Don’t email spammers just spoof the domain or send without a domain?

Very much so. Out of the spam that I do see in my inbox, the sender domains are usually spoofed, while the reply-to addresses are usually gmail.com, hotmail.com or outlook.com.

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5 points

You need to set up dkim to prevent spoofing. Each message sent has a digital signature that matches one on a DNS record for your domain. You can also set an SPF record, which will tell the recipient what up addresses are authorized to send mail on behalf of your domain.

The recipent must have policies in place that reject mail which fails dkim/spf

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4 points
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Don’t email spammers just spoof the domain or send without a domain?

They do both, depending on the spammer and the type of spam they send. In e-mail, you have an e-mail server, you can use it to send mail to users on other e-mail servers. Each e-mail server can choose to accept or reject email from other e-mail servers based on whatever reason they want. AP/Lemmy/Mastodon is basically identical to this. I’m not sure how exactly bluesky is setup but I get the impression it’s similar. In Nostr, servers aren’t federated (each relay is seperate, if you want to send/recieve content to another user on a different relays you just talk to that relay directly instead of having “your relay” act as an intermediary), but the structure is still pretty similar.

Nostr does have this hashcash type system (requiring proof-of-work to weed out spam), but I haven’t come across any relays that actually enforce it, it will be interesting to see if that changes in time. I also saw a GitHub issue about adding something similar to AP but I think they chose not to implement it.

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4 points

But most people don’t pay for software, especially if there are “free” and legal alternatives.

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8 points

I’m not sure what you mean with that or how it relates to what I said, could you elaborate?

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2 points

As I understood you said that we should make email paid to stop spammers.

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