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532 points tempaccount420 | 1 comments | | HN request time: 0s | source
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temp0826 ◴[] No.45396500[source]
I don't know why it makes me a little sad that every application layer protocol is being absorbed into http.
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zenmac ◴[] No.45396904[source]
Yeah we got those good old network ppl or their corporate (don't knows much about tech) overlord to thank for that.

If you ever using wifi in the airport or even some hotel with work suite unit around the world, you will notice that Apple Mail can't send or receive emails. It is probably some company wide policy to first block port 25 (that is even the case with some hosting providers) all in the name of fighting SPAM. Pretty soon, 143, 587, 993, 995.... are all blocked. Guess 80 and 443 are the only ones that can go through any firewalls now days. It is a shame really. Hopefully v6 will do better.

So there you go. And know EU wants to do ChatControl!!!! Please stop this none-sense, listen to the people who actually knows tech.

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Telemakhos ◴[] No.45397051[source]
Port 25 is insecure and unencrypted; EU doesn't even need ChatControl to hoover up that data, and you'd better believe anything going through an airport wifi router unencrypted is being hoovered by someone no matter what jurisdiction you're in. Apple mail prefers 587 for secure SMTP and 993 for secure IMAP.

People were (wisely) blocking port 25 twenty years ago.

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1. Fnoord ◴[] No.45398102[source]
> People were (wisely) blocking port 25 twenty years ago.

20 years ago (2005) STARTTLS was still widely in use. Clients can be configured to call it when STARTTLS isn't available. But clients can also be served bogus or snake oil TLS certs. Certificate pinning wasn't widely in use for SMTP in 2005.

Seems STARTTLS is deprecated since 2018 [1]

Quote: For email in particular, in January 2018 RFC 8314 was released, which explicitly recommends that "Implicit TLS" be used in preference to the STARTTLS mechanism for IMAP, POP3, and SMTP submissions.

[1] https://serverfault.com/questions/523804/is-starttls-less-sa...