Yes, 90bpm.sk can receive emails.
Yes, 90bpm.sk seems to be a legitimate domain.
A record
None
MX records
alt1.aspmx.l.google.com
64.233.190.27
alt2.aspmx.l.google.com
209.85.202.26
aspmx.l.google.com
173.194.175.26
aspmx2.googlemail.com
64.233.190.27
aspmx3.googlemail.com
209.85.202.27
aspmx4.googlemail.com
108.177.15.26
aspmx5.googlemail.com
108.177.126.26