smtp.focolare.org has no MX records.
Question and response
Question
dig smtp.focolare.org. MX
Answer
The response has no answer records.
Authority
focolare.org. 3600 SOA NS67.WORLDNIC.COM. namehost.WORLDNIC.COM. 125120309 10800 3600 604800 3600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0