Just setup a new server and it has an IPV6 address which we at first ignored, however a client is getting their emails rejected by gmail::
What would be the best move here? disable IPV6 ( wouldn't that mean a reboot) or create a spf text record with the IPV6 adddress? would that be enough to solve the problem?Our system has detected that this 550-5.7.1 message does not meet IPv6 sending guidelines regarding PTR records