out_spf.freebit.net has no MX records.
Question and response
Question
dig out_spf.freebit.net. MX
Answer
The response has no answer records.
Authority
FreeBit.NET. 600 SOA NS21.FreeBit.NET. root.FreeBit.NET. 2026012601 14400 900 604800 3600
Additional
. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0