mail3.aperture-labs.org has no MX records.
Question and response
Question
dig mail3.aperture-labs.org. MX
Answer
The response has no answer records.
Authority
aperture-labs.org. 3600 SOA dns.aperture-labs.org. contact.as59645.net. 2026022602 10800 3600 604800 3600
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0