leanpub.com current DNS records

A records

Amazon.com, Inc.
52.41.98.163   5
52.10.174.29   6

AAAA records

NO RECORDS

MX records

Google LLC
0 aspmx.l.google.com12,723,566

SOA records

ttl: 7,200
email: awsdns-hostmaster.amazon.com2,756,728

TXT

v=spf1 a mx include:spf.mtasv.net include:spf.mail.intercom.io include:servers.mcsv.net include:_spf.google.com -all
google-site-verification=zoRXbAIm861EKd5VTW9pSjE9SmF0G12EWQit--QX-RI

CNAME records pointed here1