Joomla seems to start from 2.X and 3.X，The email address in the article will be automatically converted into a hyperlink format。Using Javascript syntax for the email address of a page today，results in a click，Two Outlook windows will pop up，So you need to turn off the built-in conversion function。
The official name of this feature is Email Cloaking，Older versions of Joomla may be found in Plugin，Joomla 4 can't find it，So when you want to disable this feature，You need to add the following syntax anywhere in the article，Email Cloaking for this article will be turned off。
{emailcloak=off}
【參考連結】
- Help15:Screen.plugins.edit.15 – Joomla! Documentation
- disable email cloaking plugin on page by page basis – Joomla! Forum – community, help and support
