I have a dedicated server running CentOS7 with Postfix, the problem is that all the sent mails are flagged as SPAM by hotmail and gmail despite DKIM, SPF, DomainKeys, DMARC records and keys wich are all OK (See photo1)headers from gmail
I'm using cloudflare in order to add the DMARC record, cause 1&1 dosen't allow it. I also checked PTR, and NS records, on mail-tester.com i get 10/10 with is great, on port25.com i get:
SPF check: pass DomainKeys check: pass DKIM check: pass Sender-ID check: pass SpamAssassin check: ham
Please don't mark the question as duplicate, there is no similar case, my server IP is not blacklisted, i don't and never use/d email marketing, i own this IP from 1 year ago.
Thank you all in advance, Eugen P.