Advanced SPF Records Configuration for Gmail and Firebase for a Mobile App

Problem description: When we test our email using Mailtester, we encounter unusual numbers for our project, namely.

SPF record:

v=spf1 include:dc-aa8e722993._spfm.autov.be include:_spf.firebasemail.com include:_spf.google.com ~all

more information:

autov.be: Included domain 'dc-aa8e722993._spfm.autov.be' has no applicable sender policy



Details:

dig +short TXT autov.be :
  • "firebase=autov-db5f7"
  • "google-site-verification=1PiQrkRmbdiLoOsX_DeQSBmf6xQ1qFedQA2QpaIfRZo"
  • "v=spf1 include:dc-aa8e722993._spfm.autov.be include:_spf.firebasemail.com include:_spf.google.com ~all"
dig +short TXT @ns13.domaincontrol.com. autov.be :
  • "firebase=autov-db5f7"
  • "google-site-verification=1PiQrkRmbdiLoOsX_DeQSBmf6xQ1qFedQA2QpaIfRZo"
  • "v=spf1 include:dc-aa8e722993._spfm.autov.be include:_spf.firebasemail.com include:_spf.google.com ~all"
spfquery --scope mfrom --id noreply@autov.be --ip 209.85.210.72 --helo-id mail-ot1-f72.google.com :
  • permerror
  • autov.be: Included domain 'dc-aa8e722993._spfm.autov.be' has no applicable sender policy
  • autov.be: Included domain 'dc-aa8e722993._spfm.autov.be' has no applicable sender policy
  • Received-SPF: permerror (autov.be: Included domain 'dc-aa8e722993._spfm.autov.be' has no applicable sender policy

According to the documentation, there should only be one record, and this combination already looks strange. So, I removed the SPF record that was at the bottom. The issue is that you can only test it properly tomorrow because it needs 24 hours. Now, the SPF record looks as follows.
After update


Links about SPF and Google services

https://apps.google.com/supportwidget/articlehome?article_url=https%3A%2F%2Fsupport.google.com%2Fa%2Fanswer%2F10685031&assistant_id=generic-unu&product_context=10685031&product_name=UnuFlow&trigger_context=a

https://apps.google.com/supportwidget/articlehome?article_url=https%3A%2F%2Fsupport.google.com%2Fa%2Fanswer%2F10683907&assistant_id=generic-unu&product_context=10683907&product_name=UnuFlow&trigger_context=a

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