MTA-STS Policy Diagnostic:

version: STSv1
mode: testing
mx: alt1.aspmx.l.google.com
mx: alt4.aspmx.l.google.com
mx: alt3.aspmx.l.google.com
mx: aspmx.l.google.com
mx: alt2.aspmx.l.google.com
max_age: 604800
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