mail.s30.bp01.net has no MX records.
Question and response
Question
dig mail.s30.bp01.net. MX
Answer
The response has no answer records.
Authority
bp01.net. 3600 SOA level.np6.com. masterdns.np6.com. 2841355003 3600 600 604800 3600
Additional
. 0 OPT ; payload 4000, xrcode 0, version 0, flags 0