Put squared brakets into input field name

Hello,

Is there anyway to name a field with “[” or “]” and still using the contact form 7 shortcodes?

What I am trying to do and what fails because of the squared brakets:

[checkbox* mc4wp-INTERESTS[123124124] default:get
“A”
“B”
“C”]

Of course I could just use the html code generated without the brakets, change the name there and insert html in my form builder. Unfourtunatly, the default:get function does not work anymore. In addition to that I can’t send the information about which boxes have been checked in the E-Mail to admin if I do it that way.

Thank you very much!