Each user can control the emails from the notification settings (linked here). Below is a screenshot showing how to navigate there:
These are the default emails when first signing up for WorkPatterns:
Please note that some emails are system-based, such as trial expiring or changes to users on your account. These aren't part of the notification settings.
Once chat is integrated each user can tailor notifications to her or his preferences: via Email, chat, or in WorkPatterns only.