bos.hostedsolutions.com has no MX records.
Question and response
Question
dig bos.hostedsolutions.com. MX
Answer
The response has no answer records.
Authority
bos.hostedsolutions.com. 1800 SOA ns1.ral.hostedsolutions.com. hostmaster.hostedsolutions.com. 2016121393 10800 3600 604800 1800
Additional
. 0 OPT ; payload 1220, xrcode 0, version 0, flags 0