mail.transact.bm has no MX records.
Question and response
Question
dig 5704537.transact.bm. MX
Answer
The response has no answer records.
Authority
transact.bm. 1800 SOA nsd.transact.bm. dnsadmin.transact.bm. 2026021200 1200 120 1209600 1800
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0