Get the value after the pipe in template

Hello. I have a problem with getting the value after the pipe from a select field.

The select has some options like:
[select field “option1|A” “option2|B”]

I need to get the value after the pipe (A or B) with a function attached to wpcf7_before_send_mail filter.

But in the $posted_data I only get the value before the pipe.

Is there a way to get the value after the pipe?

Thank you.