FTP.TalkSoft.COM has no MX records.
Question and response
Question
dig Nirvana.TalkSoft.COM. MX
Answer
The response has no answer records.
Authority
TalkSoft.COM. 86400 SOA TalkSoft.COM. psi.TalkSoft.COM. 2018072101 10800 3600 2492000 86400
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0