this post was submitted on 19 Jan 2026
395 points (99.5% liked)

Programmer Humor

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[–] elvith@feddit.org 192 points 3 days ago* (last edited 3 days ago) (4 children)

A plus sign? That's nothing, LOL

Quote:

If you disagree, or have any other comments, feel free to email me at

'*+-/=?^_`{|}~#$@[IPv6:2602:f977:800:0:e276:63ff:fe72:3900]

-- if your mail client lets you, that is.

[–] mormegil@programming.dev 1 points 3 hours ago

Because of one smartass customer who insisted on doing exact RFC 822 validation, I implemented exactly that. And yes,

zKcknV|NGv.lI66vR#@X`QcRK4K.R`?NpA.Gc2Kqzue9.%&nb1kGWp/./#Och$RQv

is one of the test cases for a valid addr-spec. See (or generate) some others at https://github.com/mormegil-cz/rfcemailvalidator

[–] boonhet@sopuli.xyz 45 points 3 days ago (1 children)

I like this issue in the form of a quiz

[–] mech@feddit.org 16 points 2 days ago* (last edited 2 days ago)

TIL:
🫱@🫲
is a valid e-mail address.

[–] erer@lemmy.zip 4 points 2 days ago (1 children)

I dont know if it's just me, but this comment is breaking the rendering of Voyager

[–] elvith@feddit.org 3 points 2 days ago

I needed to use a code block for that address as several apps had a problem when I tested escaping the back ticks in the address for the inline code. Not sure if you mean that as it renders in it's own line or if anything else is broken

[–] smiletolerantly@awful.systems 3 points 3 days ago

Nice, I was able to send an email to that.