smtp2.sageatl.fr has no MX records.
Question and response
Question
dig smtp2.sageatl.fr. MX
Answer
The response has no answer records.
Authority
sageatl.fr. 300 SOA ns1.linkbynet.com. administrateur.lbn.fr. 2024101807 21600 3600 604800 86400
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0