Carlos Fenollosa Profile picture
Sep 4, 2022 25 tweets 4 min read Read on X
After self-hosting my email for twenty-three years I have thrown in the towel 😩

Email is now an oligopoly, a service gatekept by a few big companies which does not follow the principles of net neutrality.
I have seen this slow decline in real time. Nevertheless, I have been fighting back out of pure spite, obstinacy, and activism.

Because it was the right thing to do.
But my emails are just not delivered anymore. I might as well not have an email server.

So, starting today, the MX records of my personal domain no longer point to the IP of my personal server. They now point to one of the Big Email Providers.

I lost. We lost.
1️⃣ This is a huge, invisible problem

Google has half a billion results for "my email goes directly to spam".

What's the usual answer from experienced sysadmins? "Stop self-hosting your email and pay [provider]."
You can no longer set up postfix to manage transactional emails for your business. The emails just go to spam or disappear.

It doesn't matter who you are: a doctor, a bank, an e-commerce, a university, an individual. Your email server doesn't reach their recipients.
2️⃣ Why does this happen?

Email servers run algorithms so most spam doesn't appear on your inbox.

Unfortunately, the computing power required to filter millions of emails per minute is huge.
The email industry has chosen a shortcut to reduce that cost: deleting it as it is received.

This is called blackholing or hellbanning.

Big email servers permanently blacklist whole IP blocks and delete their emails without processing or without notice.
3️⃣ What are we left with?

• You cannot set up a home email server.

• You cannot set it up on a VPS.

• You cannot set it up on your own datacenter.
• At some point your IP range is bound to be banned, either by one asshole IP neighbor sending spam, one of your users being pwned, due to arbitrary reasons, by mistake, it doesn't matter.

It's not "if", it's "when".

Say goodbye to your email. Game over. No recourse.
✉️ The era of distributed, independent email servers is over
4️⃣ This has an anti-competitive impact

Hellbanning everybody except for other big email providers is lazy, dishonest... and convenient.

It uses spam as a scapegoat to nerf deliverability and stifle competition.
Nowadays, if you want to build services on top of email, you have to pay an email sending API which has been blessed by others in the industry. One of "them".

This concept may sound familiar to you. It's called a racket.
It's only a matter of time that regulators realize that email is a for-profit oligopoly. And we should avoid that.

The industry must self-establish clear rules which are harsh on spammers but give everybody a fair chance.
5️⃣ The email industry must lead its regeneration

We already have the technology in place but the industry has no incentives to move in this direction.

Nobody is making a great fuss when small servers are being discriminated against, so they don't care.
I'm not asking for a revolution. Please hear my simple proposal out:

1. Let's keep antispam filters, of course.

2. Change blacklisting protocols so they are not permanent and use an exponential cooldown penalty.

3. Blacklists should not cover whole IP blocks.
4. Stop blackholing and send a daily notification to postmaster alerting them of deliverability issues.

5. Provide a recourse for legitimate servers, even if it has an associated cost.
6️⃣ We cannot leave this to the politicians

Big Tech companies are under serious scrutiny and being asked to provide interoperability between closed silos such as instant messaging and social networks.
Well, email usage is fifteen points above social networking.

Talk about missing the forest for the trees!

I guess nobody noticed the irony of regulating things that matter *less* than email. 🤷
Right now institutions don't talk about regulating email simply because they take it for granted, but it's not.

We only need one politician's emails not delivered due to poorly implemented or arbitrary hellbans and this will be a hot button issue.
We are all experiencing what happened when politicians regulated the web. I hope you are enjoying your cookie modals; browsing the web in 2022 is an absolute hell. 🍪

The industry should fix email interoperability before politicians do. We will all win.
You can find the full article with more details on this link.

What is your experience as a small email server admin? I'd love to know ❤️

cfenollosa.com/blog/after-sel…
If you agree, I would appreciate that you helped raise awareness of this invisible but serious topic.

Click on the first tweet of the thread and retweet it.

Thanks!

Many people are asking me to name and shame, so I will do it:

Microsoft. I have been unable to deliver a single email to a Microsoft server in the past five years.

live-dot-com, outlook-dot-com, and any organization using Office 365 as their email server. It goes to /dev/null
Insightful counterpoint.

This is why I love HN discussions, polite counterarguments by knowledgeable people!

PS: I'm not exaggerating and my IPs have never sent spam in ten years ;) Image
It’s starting to happen, earlier than I thought

axios.com/2022/10/22/rnc…

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More from @cfenollosa

Jan 8
¿Cómo serían Los Simpson de carne y hueso?

El usuario de Reddit princess_prompt ha generado unas increíbles imágenes con Midjourney.

Mi favorito siempre será el actor secundario Bob, pero aquí te dejo con todo el elenco:

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Dec 22, 2023
¡Esta es la IA que me gusta!

Un sistema de Deep Learning ha analizado las retinas 👁️👁️ de 1.000 niños y ha logrado detectar precozmente el autismo en el 100% de los casos ‼️

sciencealert.com/a-hidden-patte…
La base científica es fascinante (y, para mí, desconocida): la retina está tan conectada con el cerebro que refleja sus alteraciones con alta fidelidad.

Una IA es capaz de analizar una «fotografía» de dichas retinas y detectar las anomalías en el cerebro.
Un 100% de recall para los casos y un 74% para la severidad es espectacular.

¿Es de fiar?

Publicado en JAMA Network Open, con IF 13.8, y una muestra de N=958, parece un estudio bastante decente.

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Read 5 tweets
Dec 20, 2023
Los creadores de ChatGPT han sacado la guía DEFINITIVA de esta herramienta 📖

Me la he leído sus 36 páginas y te las he resumido en los 6️⃣ trucos fáciles de leer para sacar el máximo partido a ChatGPT.

Con ejemplos en castellano, ¡por supuesto!

👇 Image
0️⃣ ANTES DE EMPEZAR

ChatGPT puede ser muy inteligente, pero no te lee la mente.

Tienes que imaginar que estás hablando con otra persona a la que acabas de conocer.

Dale muchos detalles, explícale qué tipo de respuesta buscas, y ten paciencia.

¡Verás qué diferencia!
1️⃣ ESCRIBE INSTRUCCIONES PRECISAS

Si le haces preguntas cortas y vagas te responderá como si fuera un artículo de la Wikipedia.

Indícale exactamente lo que necesitas y verás cómo mejora el resultado, y el mero ejercicio de pensar bien tu pregunta te ayuda también a ti. Image
Read 13 tweets
Nov 20, 2023
🐍 Tercer día del culebrón de OpenAI

🔀 Segundo giro de guión

🥇 Un claro ganador

No te pierdas la nueva entrega del drama que ha mantenido en vilo a millones de personas durante un fin de semana frenético

«La mejor explicación del drama de OpenAI en castellano»™️

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No te pierdas el hilo de ayer domingo (ni el del sábado, enlazado desde allí)



Pero si te da pereza, te lo resumo en los dos tuits siguientes:
🪐 SÁBADO (hora española)

• El consejo de OpenAI, instigado por el CSO Ilya Sutskever, destituye al CEO Sam Altman por «ocultar información». Brockman, Presidente, dimite

• Satya Nadella, CEO de Microsoft, inversor en el 49% de OpenAI, presiona para readmitir a Altman
Read 67 tweets
Nov 19, 2023
¡Segundo día del culebrón de OpenAI, con giro de guión inesperado!

La empresa con mayor potencial de transformar nuestras vidas a través de la IA está pasando por una crisis histórica... y parece que ha atrapado a todos los analistas por sorpresa

Vamos a por las novedades

👇 Image
Primero, entendamos qué sucedió ayer

Te animo a que leas el hilo de ayer con todos los detalles, pero te lo resumo en los tres tuits siguientes 👇

☀️ SÁBADO POR LA MAÑANA

• El Consejo destituye al CEO, Sam Altman, y degrada a Greg Brockman, Presidente. Éste último dimite.
• El motivo, traduciendo de idioma corporativo, es que Altman mintió u ocultó información.
• El instigador es el CSO, Ilya Sutskever
Read 23 tweets
Nov 18, 2023
El mundo se ha despertado con el despido de san Altman, CEO de la empresa OpenAI, autores de ChatGPT

✋🏼 ¿Por qué debería importarte? ✋🏼

Esta noticia revela una lucha entre dos facciones de la empresa que desarrolla la IA que puede cambiar nuestras vidas

Te lo explico 👇 Image
En este hilo he preparado un resumen de los datos que van apareciendo de fuentes tanto oficiales como no oficiales, mezclado con mi interpretación sobre el impacto que tendrá en todos nosotros la victoria de una facción u otra.

Empecemos.
1️⃣ PRINCIPALES AFECTADOS

• Sam Altman (@sama). CEO y cara visible de la empresa. Despedido fulminantemente

• Greg Brockman (@gdb). Presidente del Consejo y co-fundador. Anterior CTO. Expulsado del consejo, se le ofreció quedarse como empleado, pero dimitió pocas horas después
Image
Image
Read 45 tweets

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