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This article mainly explains "what is the concept of email html". Interested friends may wish to have a look. The method introduced in this paper is simple, fast and practical. Let's let Xiaobian take you to learn "what is the concept of email html"!

HTML mail uses a subset of the HTML markup language to provide formatting and semantic markup features in email, since these features are not available in plain text documents, and most graphical email clients support HTML mail.

Operating environment: Windows 7 system, HTML5 version, Dell G3 computer.

What is html mail?

HTML email uses a subset of HTML markup language to provide formatting and semantic markup features in email that are not available in plain text documents. Text can be concatenated without displaying URLs, or broken into URLs, where multiple events are wrapped in windows of appropriate width, rather than evenly breaking each line into 78 characters. It allows for the inclusion of images, tables, and graphs or mathematical formula images between objects that are otherwise difficult to communicate (usually using ASCIIart).

Most graphical email customers support HTML mail, and there are many who default to it. Many clients include a GUI editor to compose HTML emails and a rendering engine to display received HTML emails.

Since its conception, some people have voiced opposition to HTMLemail as a whole (and even MIME itself) for various reasons. For example, the ASCII Ribbon movement argued that all email should be put into ASCII text format, which was unsuccessful and abandoned in 2013.[3][4] While persistent thinking is not appropriate in many newsgroup postings and mailing lists, its adoption of personal and business mail increases over time. Some people strongly opposed it, and since its first appearance we have regarded it as harmless.[5]

According to online marketing company surveys, adopting HTML enables email users to be almost universal today, with less than 3% reporting their plain text clients [6]. Most users prefer to receive HTML emails in plain text.

compatibility

Mail software is compliant with RFC 2822 and only needs to support plain text, not HTML formatting. Sending an HTML formatted email can therefore cause problems if the recipient's email customer does not support it. In the worst cases, the recipient will see HTML instead of the intended message.

Some of those email clients that support HTML do not give it W3C consistent specifications, many HTML emails are incompatible, and those that may cause translation or rendering problems, especially for Gmail users.

In particular, markup, which is used to house CSS style rules throughout HTML files, is not well supported and sometimes completely stripped away, resulting in online style declarations becoming de facto standards, even though online style declarations are inefficient and fail to take full advantage of HTML's ability to separate style from content. Although workarounds have been developed,[9] this has caused considerable frustration among communications developers, spawning grassroots email standards projects, scoring email clients on acid tests, inspired by Web standards projects, and lobbying developers to improve their products. [10]Convince Google to improve the presentation in Gmail, for example, by publishing a video clip of a grimace web developer to get employees 'attention.

message size

HTML emails are larger than plain text. Even if no special formatting is used, the overhead of tags will be used in the smallest HTML document, which can be much higher if formatting is overused. Multipart messages, copies of the same content in different formats, even further increasing the size. A multi-part message in plain text can be retrieved by itself, but using the FETCH command of IMAP.

While the difference in download time between plaintext and mixed mail (which may have been ten times or more) was in the 1990s (when most users accessed email server modems over slow speeds), on modern connections, the difference is insignificant for most people, especially when compared to images, music files, or other common attachments.

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