syslog01.bos.synacor.com has no TXT records.
Question and response
Question
dig syslog01.bos.synacor.com. TXT
Answer
The response has no answer records.
Authority
synacor.com. 3600 SOA dns1.p05.nsone.net. hostmaster.nsone.net. 1653325585 3600 600 604800 3600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0