> On 2016-02-10 20:39, Noel Jones wrote: > > This particular client has no reverse DNS hostname. Most sites find > it safe to use reject_unknown_reverse_client_hostname to reject such > clients. This similar to restrictions at many big mail providers and > is a much safer alternative than reject_unknown_client_hostname. > http://www.postfix.org/postconf.5.html#reject_unknown_reverse_client_hostname
are there any legitimate (non-spam) senders, that would be blocked by reject_unknown_client_hostname ? According to the documentation, it should reject if: 1) the client IP address->name mapping fails 2) the name->address mapping fails 3) the name->address mapping does not match the client IP address that seems fine to me
