Заблуждения программистов про email

Что: 5bf7d761816b93f649dd58e4bde0792e2bd9de53

Когда: 2022-09-01 11:20:17+03:00

Темы: mail

https://beesbuzz.biz/code/439-Falsehoods-programmers-believe-about-email
https://emailisbad.com/
Годный список заблуждений. Но не без юмора.
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Everyone has an email address
Everyone has exactly one email address
An email address never changes
Whenever an address does change, it's under that user's control
Whenever an address does change, it's because the user specifically

requested it to happen

Whenever an address does change, the old address will continue to work/exist
Any one email address refers to only one single person
Unique strings of characters all map to different addresses
All email is hosted by a centralized system
When email is sent to a user at a domain, it is delivered to a server

whose address matches that domain

When email is sent by a user at a domain, it is sent by a server whose

address matches that domain

All email comes from a .com, .net, .edu, or .org address
You can filter out email based on the TLD or ccTLD from which it originates
Having a particular ccTLD means that you prefer to receive

communications in that country's native language (for example, .fr ->
French)

Email addresses only contain letters
Email addresses only contain letters and numbers
Email addresses only contain letters, numbers, and a handful of common

punctuation marks (e.g. ., _, and -)

Email addresses will have at least one letter in them
An email address like ^_^@example.com or +&#@example.com is invalid
Email is a reliable transport
Email is an instantaneous transport
Emails will be sent within a few minutes of their scheduling
Emails will be sent within a few hours of their scheduling
Emails will be sent within a few days of their scheduling
Emails will be received soon after they're sent
When an email is sent it immediately goes to its destination server
If an email bounces, the address is invalid
If an email doesn't bounce, the address is valid
An address which is valid will always be valid, and an address which

is invalid will always be invalid

All email is sent via SMTP over TCP/IP port 25
All email is sent via SMTP over TCP/IP
All email is sent via SMTP over IP
All email is sent via SMTP
All email servers support the various vendor extensions by the current

"everyone uses this vendor" vendor (Microsoft, Google, etc.)

An email can only have one From: address
The Date: header on a message is legitimate
The Received: headers will always be no earlier than the Date: header
All email clients support HTML attachments
All email clients support HTML message bodies
All email clients support MIME encoding
Email is secure
Encrypted email is secure
All email is accessed via webmail
All email is accessed via webmail or IMAP
All email is accessed via webmail, IMAP, or POP3
Nobody uses email anymore

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А ещё сайтик почему email плох:

Spam is rampant

Да, не поспоришь. Из-за, так сказать, открытой федерации.

Running your own server is a major pain

Да. Но кто сказал что боль это плохо?

If you aren't on gmail, gmail assumes you're sending spam

К сожалению тут не поспоришь. В жопу людей использующих gmail.

Everyone else is on gmail

Смотря какой круг общения.

Attachment limits are obnoxious and arbitrary

Ибо нефиг посылать огромные вложения -- email крайне не эффективен тут.

Nobody knows how to validate addresses

Ну... да. Особенно бесит когда не дают ввести "+".

Configuring TLS, SPF, DKIM, submission, etc. is confusing

Не поспоришь.

Random RBLs will blacklist you based on superstitions, and admins of

other email servers will trust RBLs without question.
Полностью согласен. В жопу таких админов.

Many useful protocol features have been completely forgotten in the

quest to eliminate all spam (retry, MX forwarding, etc.).
Не уверен что понимаю где кто и когда посеял все эти фишки. Вроде бы
это всё активно продолжает работать и использоваться.

Random things don't understand MIME encoding for some damn reason

Бывает, бывает.

Many clients don't know how to handle HTML correctly and/or safely

Не поспоришь.

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И на нём же -- почему email хорош:

Technically it's decentralized

Верно.

You can self-host it for not a lot of money

Верно.

There's a wide array of interoperable clients that work without a lot

of proprietary nonsense
Верно.

Message headers are very extensible and useful for all sorts of

unexpected things
Верно.

MIME encoding can do some really useful stuff

Нет деталей и намёка что именно имеется в виду.

It's private by default

Не понятно что подразумевается под private. То, что тут могут быть по
умолчанию не задействованы третьи лица? Тогда да.

It's federated by default

Верно.

Spam filters have gotten pretty good for the most part

Скорее соглашусь.

You can have your own domain name and move it between different

providers rather than being tied to your ISP and/or Google
Верно.

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И на нём же причины чем email хорош когда его пытаются заменить на
дерьмо IM-овое всякое:

You can keep control of your notifications via message filtering, etc.
Message filtering can be incredibly flexible

Важнейшие аргументы!

Pretty good search (especially in modern clients, with client-side caching)

Согласен. Плюс вы его сами можете делать, независимо у себя.

Threaded messages can provide better context for a conversation and

also allow people to self-edit and take more time to think about what
they're going to say
Полностью согласен.

Writing "bots" and email-based APIs in general is much, much easier

Вот не уверен что возня с MIME приятна. Но библиотек для этого тьма.

Signatures can add a lot of personality and useful information

Не уверен что это прям плюсом каким-то является.

A broad choice of clients that satisfy varying accessibility needs

without randomly A/B testing your experience
Полностью согласен -- то, что email это протоколы/форматы, а не
какое-то конкретное ПО. Одно ПО не может удовлетворять всех и вся.

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