Le 2 juin 2023 Andrew Wood a écrit : > The the issue is our server sends mail for our own domains and we are getting > mail rejected from some recipient servers with 550 PTR rejected: Please use a > non-generic PTR (in reply to RCPT TO command.
Give the full message for better understanding but I suppose that the connexion is rejected, not the mails. > My understanding is that as we are sending email from our own domain e.g > "example.com" its complaining because the PTR is ovh.net not example.com? And in the format vps-xyz.vps.ovh.net > As its not recommended to have more than one PTR for an IP is there anything > we can do about this given that our server handles mail for a couple of > domains? Your server myhostname must resolve to the same ptr. So you should ask a reverse to ovh setting it to your postfix myhostname. And of course myhostname must be on your domain. For all your domains you should also setup SPF and DKIM.
