I have PTR records setup but I am not able to deliver mail to Gmail accounts:
host gmail-smtp-in.l.google.com[2607:f8b0:4004:c08::1b] said: 550-5.7.25 [2a01:4ff:f0:a7b6::1] The IP address sending this message does not 550-5.7.25 have a PTR record setup, or the corresponding forward DNS entry does 550-5.7.25 not point to the sending IP. As a policy, Gmail does not accept 550-5.7.25 messages from IPs with missing PTR records. Please visit 550-5.7.25 https://support.google.com/mail/answer/81126#authentication for more 550-5.7.25 information. u1-20020ac87501000000b00315c38791casi6985465qtq.683 - gsmtp (in reply to end of DATA command)
Can someone please walk me through on how to setup my PTR records correctly. I am hosted on Hetzner Cloud and used Rainloop to create the email accounts.