Pixpa does not provide emails as part of its service. We totally focus on enabling you to build and manage a great website. We recommend that you use Google Apps for your email which is a paid domain based email service by Google built on its Gmail platform.
See this article to learn how you can use Google Apps for your domain based emails.
We also recommend email hosting by Zoho. See details here: https://www.zoho.com/mail/ .
While Google Apps is now a paid-only service, Zoho does have free plans which are more than sufficient for most needs.
Here’s a great review that compares cloud-based email services from Google, Zoho and three more providers.