Mail validating


06-Feb-2020 08:11

mail validating-13

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HTML validators work best for email when you use them to check for syntax errors, unclosed tags, or orphaned tags. HTML validation works by comparing your HTML to a set of standards or rules, called a DOCTYPE.When attempting to validate HTML coded for email with a web validator, it’s pretty common to see errors and warnings that are confusing. DOCTYPE is a document type declaration, and is usually placed at the beginning of your HTML file to tell the validator which set of standards to check your HTML against: In the case of web development, it also tells the browser which rendering mode to use.HTML validators are invaluable tools for people that write code.They can let you know if there are any errors present that might cause display issues and give you some clues for debugging.Check out fractal or the inline styler, which converts your embedded CSS to be inline and also gives you a report on your code’s compatibility with major email clients.Keep in mind that these tools do not check for unclosed tags or other standard errors, so it’s a good idea to also run your email through the standard W3C validator.You may choose to encode the ampersand, but I usually don’t find that these cause problems.If your messaging platform or ESP uses specialty tags or proprietary scripting, these will also trigger validation warnings that appear as “Element x undefined.” For example, Campaign Monitor uses the tags to indicate where the unsubscribe link should appear in your email.

These specifications make up what is commonly referred to as “web standards.” The trouble is that most email clients don’t support web standards and instead only support a hodgepodge of HTML and CSS.The W3C has a page with explanations for many errors, which can be helpful.A couple folks have created alternative validator tools that include warnings for HTML and/or CSS elements that aren’t supported by email clients.Deprecated tags are still supported, and in some cases an email client may only support the older, deprecated element.



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