YNU Mail uses "Office 365" provided by Microsoft, and depending on the user, in addition to the mail service, various functions such as data storage, use of Microsoft Office, and SNS tools are provided.
In addition, it is a cloud service that allows you to use various functions that can be accessed from anywhere if you have an Internet connection environment, and it is also possible to share data between users.
There are the following restrictions on sending emails.
You can configure forwarding to multiple destinations, but the number of forwarding addresses is limited to 10.
Transfer within the same domain (within "ynu.jp" or "ynu.ac.jp") is only once.
For other limits, see Exchange Online Limits.
By registering your contact information in advance, you can reset your password by yourself even if you do not know your password.
* If you have not set self-password reset and have forgotten your password, please check here.
Due to the specifications of Office365, users cannot change the display name of YNU mail by themselves.
If you wont to change the display name, please apply using the form below.
Changes will be made within approximately one week after the application is accepted.
The first time you log in to YNU Mail, you need to set up multi-factor authentication. If you want to add or change authentication, see the second half of the manual.
* If you can't reconfigure MFA yourself (that is, you can't authenticate using both phone and app methods), please check here.
If you want to use an app that does not support multi-factor authentication, you need to set the created application password.