Remove 'Is valid XHtml' validation rule for Rich Text field

Question

We have a Rich Text field where we are storing our email's html.

When i try to save the item, i ended up with validation error like

The field "EmailBody" contains (or lacks) some formatting attributes which can cause unexpected results in some browsers (such as Internet Explorer, Firefox, or Safari). For more information about the specific issue detected, use to the Validation command in the Proofing group on the Review tab.

when i checked by clicking on validation button the error is:

Field must be a valid XHtml document Error: The element 'div' in namespace 'http://www.w3.org/1999/xhtml' has invalid child element 'meta' in namespace 'http://www.w3.org/1999/xhtml'. List of possible elements expected: 'p, h1, h2, h3, h4, h5, h6, div, ul, ol, dl, pre, hr, blockquote, address, fieldset, table, form, a, br, span, bdo, map, object, img, tt, i, b, big, small, em, strong, dfn, code, q, samp, kbd, var, cite, abbr, acronym, sub, sup, input, select, textarea, label, button, noscript, ins, del, script' in namespace 'http://www.w3.org/1999/xhtml'. [2, 4]

I want to suppress that error on specific field("EmailBody") not a global change for rich text field, how can i achieve this?

Answer 1

You can remove the rule validation on the Global Rules item /sitecore/system/Settings/Validation Rules/Global Rules

You'll want to remove the rule from the Validate Button, and Validate Button fields of the item.

Update

There are field specific rule items that you can update to remove the Is XHtml if needed. The Rich Text field is located at /sitecore/system/Settings/Validation Rules/Field Types/Rich Text