lists.fim4r.org has no MX records.
Question and response
Question
dig lists.fim4r.org. MX
Answer
The response has no answer records.
Authority
lists.fim4r.org. 900 SOA grid01.geant.net. hostmaster.geant.org. 39 3600 7200 2419200 900
Additional
. 0 OPT ; payload 1220, xrcode 0, version 0, flags 0