CSA-certified-host=BD37C230-5302-11EE-858B-9E1506673471
Question and response
Question
dig mta5.expertsender.com. TXT
Answer
mta5.expertsender.com. 3600 TXT "CSA-certified-host=BD37C230-5302-11EE-858B-9E1506673471"
Authority
expertsender.com. 3600 NS pdns08.domaincontrol.com.
expertsender.com. 3600 NS pdns07.domaincontrol.com.
Additional
. 0 OPT ; payload 1280, xrcode 0, version 0, flags 0