30 Sep
2010
30 Sep
'10
2:27 a.m.
Hi,
Does anybody know whether the Postfix checks reject_unknown_client_hostname [aka Reject the request when 1) the client IP address->name mapping fails, 2) the name->address mapping fails, or 3) the name->address mapping does not match the client IP address] follows actually any requirement by a RFC? If so, which one?
To reject any mails with errors 5XX with just ONE criterium is very bad behaviour anyway and will always lead to false positives.
-- Martin