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sudo postconf -e "inet_interfaces = loopback-only" # receive no mail from the network, and do not deliver any mail locally |
Reverse DNS
Reverse DNS unless delegated is managed by the ISP provider. Generally this means whoever manages the IP address of your server.
Setup spf Records
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This section should be filled out with a general discussion of what spf is for and how to configure within Rackspace or your registrar. |
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