Yes, vip.sina.com can receive emails.
No, vip.sina.com 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
221.179.190.189
MX records
mx1.vip.sina.com
49.7.37.128
mx2.vip.sina.com
202.108.7.116
mx3.vip.sina.com
202.108.7.116
sinamx.vip.sina.com
202.108.7.116