eadev1.connectalk.com has no MX records.
Question and response
Question
dig eadev1.connectalk.com. MX
Answer
The response has no answer records.
Authority
eadev1.connectalk.com. 3600 SOA ns.ctalk.com. support.connectalk.com. 2023111031 10800 1800 1209600 3600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0