Andrew Wood wrote: > Hi > > Can I clarify my understanding of an issue with a Debian Postfix server > please. We have a mail server which is a VPS running Debian hosted by OVH. > Its hostname is of the form vps-xyz.vps.ovh.net the PTR for the IP resolves > to that. > > 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. > > > 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? > > > 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?
Ask OVH to set the PTR to one of your domains, and make sure you have an MX in each of your domains that points back to that domain. i.e.: PTR mail.longterm.com MX for longterm: 50 mail.longterm.com MX for otherdomain: 30 mail.otherdomain.com 50 mail.longterm.com MX for yetanotherdomain: 30 mail.yetanother.net 50 mail.longterm.com -dsr-
