Problem with accented characters

Hi,

Just tested your plugin and it works very well on normal mailto links but gets in trouble when the link text has accented characters which is a problem in french and does not encode at all plain text emails.

Examples here : https://wpdemo.anw-sandbox.ch/examples-simple-email-address-encoder/

Is it possible to fix that ?

Desperately looking for an efficient email protection plugins still developed most of them being abandoned since years so any feedback would be appreciated ??

The page I need help with: [log in to see the link]