Does apple pages sharing strictly require an iCloud account? My client is attempting to share (via an email address) a Pages document.

I walked him through using his iCloud account to do this, which worked.

However, his first choice would be to have the file come from his business email. Is this possible with Pages?
On Mac, it's - 

Share menu > Send a Copy > Mail

on iOS - 

Ellipsis menu > Share > Mail

In either case, the choice of email account is set from within the mailer software, before sending.