The iOS app shows client email addresses, and has a handy "email" button that will create an email in the iOS mail app. But, if you use another app for company email you have to screenshot the client page, then use text recognition to copy their email address to paste it into the email app (you can't copy it from the iOS email app for some reason, you can see it, and select it, but can't copy it). Or you have to try to manually type their email, which isn't always the easiest combination of letters and numbers.

You can keep the email button for those that need it, but please allow the email address to be selected and copied for those of us that use a different email system.