sirius.blic.net has no MX records.
Question and response
Question
dig sirius.blic.net. MX
Answer
The response has no answer records.
Authority
blic.net. 600 SOA phobos.blic.net. hostmaster.blic.net. 2024102401 86400 3600 1209600 600
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0