Am 08.05.2013 01:58, schrieb Vincent Lefevre: > BTW, if I understand correctly what has been said earlier, DEFER would > be better than REJECT as the reverse_client_name==unknown error may be > temporary
RTFM http://www.postfix.org/postconf.5.html#reject_unknown_reverse_client_hostname The reply is always 450 in case the address->name lookup failed due to a temporary problem
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