o2.sgmail.github.com MX records

MX Mail server
1h
mxa.mailgun.org 10 Primary
mxb.mailgun.org 10 Primary

Question and response

Question

dig o2.sgmail.github.com. MX

Answer

o2.sgmail.github.com. 3600 MX 10 mxa.mailgun.org. o2.sgmail.github.com. 3600 MX 10 mxb.mailgun.org.

Authority

github.com. 900 NS dns1.p08.nsone.net. github.com. 900 NS dns2.p08.nsone.net. github.com. 900 NS dns3.p08.nsone.net. github.com. 900 NS dns4.p08.nsone.net. github.com. 900 NS ns-1283.awsdns-32.org. github.com. 900 NS ns-1707.awsdns-21.co.uk. github.com. 900 NS ns-421.awsdns-52.com. github.com. 900 NS ns-520.awsdns-01.net.

Additional

. 0 OPT ; payload 4096, xrcode 0, version 0, flags 0