On 9/21/2009 9:40 AM, Wim Groen wrote:
Hi guys, Hope you can help me out. I've setup a new hosting server(hosting.example.com) all notification of that server i redirect to my postfix smtp server. When i look in the postfix log i see the message: 554 5.7.1 This message has been blocked because the return email domain is invalid.(failed to obtain DNS record for domain hosting.example.com. I created a A record for hosting.example.com and i created a PTR record for hosting.example.com. What did I do wrong? Kind Regards, Wim Groen
My first guess is that the envelope sender domain does not exist. This is logged as the from=<....@hosting.example.com> in the postfix log. Double-check your DNS setup, and make sure the domains listed in the postfix log are what you expect.
For further analysis, we need to see the entire unaltered log line, including the unaltered domain names. User names can be changed to protect individual privacy.
-- Noel Jones
