g suite - All Emails from Google apps to gmail marked as spam

I host my emails on Google Apps. I have three domains there.

The problem is every single email I send from any of these domains, when sent to gmail, are marked as spam.

• I have configured the SPF entries, and they all include a txt entry with

  
  
  
  

  include:_spf.google.com ~all
  




• I have checked blacklists and my domains/ip are not included there.




• I have also tried using the smtp option on Google apps using smtp.google.com or the native option.

Both options do not work.

Any ideas?

Answer

It seems I have found the answer.

Gmail does not like having two "include" entries on the SPF.

I had two servers there, and noticed that although all spam checkers/blacklist passed, http://check-mx.appspot.com told me the SPF as "Error while analyzing SPF data"

I removed one and left only the google one, and it seems to be working now