I am setting up a new server and discovered that Gmail does not accept emails from this server.
I checked Exim logfiles and found the following:
Our system has detected that this\n550-5.7.1 message does not meet IPv6 sending guidelines regarding PTR records\n550-5.7.1 and authentication. Please review\n550 5.7.1 https://support.google.com/mail/answer/81126 for more information. om7si10023450wjc.42 - gsmtp
My server has IP4 and IPv6 ip addresses. I have added SPF records for both IP4 and IPv6 IP addresses. The only thing is that I don't have PTR records yet (my data center does not allow to add PTR records if A record does not point to the same server). So, I will PTR records later when I move websites to the new server.
My question: is it possible that Gmail does not accept emails just because I don't have PTR records? All email providers in similar situations just put emails in Spam or Bulk mail folders. Gmail does not accept mails at all?