dynamic.isp.telekom.rs has no MX records.
Question and response
Question
dig dynamic.isp.telekom.rs. MX
Answer
The response has no answer records.
Authority
dynamic.isp.telekom.rs. 10800 SOA odisej.telekom.rs. admin.isp.telekom.rs. 2022042600 10800 3600 604800 10800
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0