Yes, 33entrepreneurs.co can receive emails.
Yes, 33entrepreneurs.co seems to be a legitimate domain.
A record
23.235.33.229
MX records
alt1.aspmx.l.google.com.
64.233.186.27
alt2.aspmx.l.google.com.
209.85.202.27
alt3.aspmx.l.google.com.
64.233.184.27
alt4.aspmx.l.google.com.
142.250.27.26
aspmx.l.google.com.
173.194.207.26