How to configure email domain with hosted service

[Young]

I setup the standard package with discourse. But when I grant a user account admin, I still received email from xxx@discoursemail.com. How can I configure the email to be sent out from my own email service? Thanks

[codinghorror (Jeff Atwood)]

Custom email domains are available on the enterprise hosting plan only.

[Bejoma (Bernhard Martinz)]

我希望标准版或商务版托管计划能附带自定义发件电子邮件地址。必须注册企业版托管才能启用自定义电子邮件，这代价相当高昂。