ALL A AAAA CAA CNAME MX NS PTR SOA SRV TXT ANY

No ANY records found for mail.mach-os.com.

Try mach-os.com instead?

id 65186, opcode QUERY, rcode REFUSED, flags QR RD RA
;QUESTION
mail.mach-os.com. IN ANY
;ANSWER
;AUTHORITY
;ADDITIONAL

ANY Record Lookup

whatsmydns.net ANY Record Lookup tool lets you query DNS servers and get instant results.

Looking for easier to understand results? Use the Global DNS Checker tool.