Fix DMARC records

roles/account-automation-frontend/templates/dns-base.yml.j2

@@ -14,7 +14,7 @@
 {% endif %}
 {% endfor %}
     - "TXT \"v=spf1 redirect=_spf.investici.org\""
-    - "TXT \"v=DMARC1; p=reject; adkim=s; aspf=s; rua=mailto:live-reports@autistici.org;\""
+  _dmarc: "TXT \"v=DMARC1; p=reject; adkim=s; aspf=s; rua=mailto:live-reports@autistici.org\""
   _domainkey: "TXT o=-"
   _adsp._domainkey: "TXT dkim=all"
   stigmate._domainkey: "TXT \"{{ domainkey_public_key }}\""