dagda2.isp.telekom.rs has no MX records.
Question and response
Question
dig dagda2.isp.telekom.rs. MX
Answer
The response has no answer records.
Authority
isp.telekom.rs. 3600 SOA dagda1.isp.telekom.rs. admin.isp.telekom.rs. 2026012801 10800 3600 604800 86400
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0