fiber.qlnet.ch has no MX records.
Question and response
Question
dig fiber.qlnet.ch. MX
Answer
The response has no answer records.
Authority
fiber.qlnet.ch. 41200 SOA . noc.fcom.ch. 2025022800 86400 7200 3600000 172800
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0