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Re:Ask HN: What under-the-radar technology are you excited a... by mey on Monday April 12, 2021 @02:43PM (#26783355)
Do you mean a better SMTP server or making a better* e-mail in general? (As an example)

* Better in this case would be a fundamental design to prevent spoofing, provide S2S encryption maybe E2E encryption, fixing MIME typing issues, fixing Rich Text/HTML display, etc. Basically an actually good faith replacement of e-mail instead of a vendor co-opting.

Re:Ask HN: What under-the-radar technology are you excited a... by networkimprov on Monday April 12, 2021 @04:55PM (#26785056)
There's TMTP, "a sane network protocol for email, to end attacks and promote productivity."

https://mnmnotmail.org/

https://twitter.com/mnmnotmail

Re:Ask HN: What under-the-radar technology are you excited a... by everybodyknows on Monday April 12, 2021 @09:46PM (#26787322)
Serious money may be required.

Support for MNM by way of Patreon is requested on the home page.

There's also JMAP, with credible standards people involved:

https://datatracker.ietf.org/wg/jmap/photos/

Serious industry involvement however appears limited to FastMail.

Re:Ask HN: What under-the-radar technology are you excited a... by networkimprov on Tuesday April 13, 2021 @12:31AM (#26788142)
JMAP is an extension of the email protocol stack; it only replaces IMAP.

TMTP is an alternative to the entire email protocol stack. It will be standardized after it's been proven in a range of real-world scenarios.

The mnm client & server, which implement TMTP, work well today, and have nearly all the features most users need. See docs menu in the online demo.

https://mnmnotmail.org/demo.html

Re "serious money", could you elaborate?

Re:Ask HN: What under-the-radar technology are you excited a... by alfiedotwtf on Monday April 12, 2021 @10:43PM (#26787599)
... that also doesn’t rely on DNS!