Initials of email looks strange on WordPress Website

Does this happen on the other fields too?

My guess would be to check the CSS, there will likely be a text-transform: capitalize property which makes them appear capitalized.

You can get rid of the property as a whole, or remove the input selector from the CSS.

If you want it to just impact this field, then depending on the theme setup, you may be able to find which theme file has this form and add in a manual style="text-transform: none;" to it.

If it is CSS, it may not be actually impacting the data but just how it’s presented (just a visual change).

If it’s not CSS, it might be JS.