Yes, yeah.net can receive emails.
No, yeah.net is a throwaway domain and should be blocked.
You can use MailCheck's free API to automatically block throwaway emails. Read our documentation to get started. No registration required.
A record
123.58.177.104
MX records
yeahmx00.mxmail.netease.com
123.58.177.220
yeahmx01.mxmail.netease.com
123.58.177.214