Ricardo Signes - 闇のEメール伝説
Why Hacker News recommends it
HN points people to it as a funny and sobering warning about why parsing, validating, or implementing email software is far harder than it looks.
What it is
Ricardo Signes' YAPC::Asia Tokyo 2011 talk on the legends and horrors of email: how messy the SMTP and email standards are in practice. The first few minutes are Perl-specific, but the rest applies to anyone handling email.
Recommended by 3 HN commenters across 3 different months, 2011 to 2021.
What Hacker News said
Strong rec JoyfulPanda · 2021-05 · on “Complexities of e-mail validation logic”
There is is awesome talk about E-Mail by Ricardo Signes: [this video] The first 5 minutes are perl specific, but the rest is email and just hilarious.
Recommends AngryParsley · 2011-11 · on “Move over HTTP it's SMTP's Turn to Shine”
The SMTP standard is complicated and crazy. RJBS from Pobox does a good job of scaring anyone thinking of writing an SMTP client or server: [this video]
Recommends k33l0r · 2013-09 · on “Email Validation Rules”
I found this talk by Ricardo Signes on email parsing to be an excellent primer into why email addresses (and emails in general) are terrible to parse: [this video]
Cites q3k · 2019-11 · on “How to run your own mail server (2017)”
Fun is a very curious way of putting it, considering how batshit crazy IMAP is. The rest of the involved email standards are also a huge dumpster fire. I'll let Ricardo Signes do the talking: [this video]