Mail pkuih edu cn

It looks like you're trying to reach the email address of Peking University in China. The correct email address format for Peking University is:

[username]@pku.edu.cn

Where username is the actual username of the person you're trying to contact.

If you're looking for a specific department or faculty, you can try adding the department name or faculty name after the @ symbol, like this:

[username]@pku.edu.cn@departmentname

For example:

[username]@pku.edu.cn@math

This would reach the mathematics department at Peking University.

Please note that the email address format may vary depending on the specific department or faculty you're trying to contact.