How to add filter to __() and _e() ?

I would wish to add a filter to _e() and __() functions. The filter is FilterTextOfEmail(). This will basically detect any emails and add anti-spam method to it.

I assume, the function for filtering should look like:

function my_wp_text_email_filtering ($content) {
    return FilterTextOfEmail($content)
}

But how to call it?