version: STSv1
mode: testing
max_age: 604800
mx: mxa.eu.mailgun.org
mx: mxb.eu.mailgun.org
mx: aspmx.l.google.com
mx: alt1.aspmx.l.google.com
mx: alt2.aspmx.l.google.com
mx: alt3.aspmx.l.google.com
mx: alt4.aspmx.l.google.com