You can change the email server that is used to send emails from Administration.

By default, the email server provided by cybozu.cn is used to send emails notifying users of their login information and emails resetting their passwords.
The sender of the emails is"no-reply@cybozu.cn".

When you want to use the email server you prepared, configure the settings for the email server and the sender on the "System E-mail Settings" screen.