在 email 开发中使用缩小的 HTML

Question

What (if any) pitfalls would I encounter If I wanted to use minified HTML code for deployment as an email?

Wouldn't the use of minified code ensure proper rendering accross the majority of different clients given I took the necessary precautions in targeting the clients I intend to support?

More specifically, trying to remedy issues like closures and white spacing in some versions of Outlook, etc. I live by properly formatted code, so hacking the beauty that is nicely formatted code seems like overkill if I could just minify it, deploy it, and call it a day..

Answer 1

This will cause issues in various email clients.

In my experience, different webmail clients (Yahoo and Gmail in particular) will have issues with lines over a certain length (a couple hundred characters) and start behaving oddly - missing parts of the content, substituting in random characters, etc.

If this were to happen in the middle of HTML, it could be disastrous.

There is no good reason to minify HTML in an email - all of the issues with things like whitespace are well documented by people all over the internet and fixes are easily available.

Answer 2

Minifying html email is at your own risk. When minifying it does alter the layout, particularly in Outlook. From what I read minifying takes away comments and I need Outlook conditional comments to shape some of my emails. I tested this in Litmus and Email on Acid...both testing platforms display distorted layouts in Outlook. I literally went onto 20 different minify html/css online tools but all of them barely shrunk my file or in all cases distort my layout.

Answer 3

HTML Crush is a minifier that is specifically built to compress HTML for email. The compression ratio won't be as efficient as other minfiers out there, but that's because it's careful about not breaking emails.

https://www.codsen.com/os/html-crush/