Am 19.09.2014 um 13:28 schrieb Wietse Venema: > li...@rhsoft.net: >> why does postfix log sometimes "unknown[xx.xx.xx.xx]" when in fact the >> reason for the reject is the PTR itself? sadly it's also missing in >> the response in such cases and in case it would have been a legit >> human person the only relevant debug information is missing >> > In the SMTP daemon, "unknown" means that the reverse/forward match > failed. This can happen for three reasons: reverse lookup failed, > forward lookup failed, or the match failed. Additionally, the SMTP > daemon distinguishes between temp-failed and hard-failed lookups. > > Are you asking for six different "unknown" variants? Why is that > an improvement?
no i am asking to log the PTR especially in case the reject reason is "check_reverse_client_hostname_access" instead "unknown" see below where the PTR is "157.112.62.218.adsl-pool.jlccptt.net.cn." that line logs IP/Name twice with a different context * fine: RCPT from unknown[218.62.112.157] reverse/forward match failed that is information for the admin * not fine 554 5.7.1 <unknown[218.62.112.157]>: Unverified Client host rejected that is information for the sender if a MTA which may create a bounce was rejected _________________________________________ NOQUEUE: reject: RCPT from unknown[218.62.112.157]: 554 5.7.1 <unknown[218.62.112.157]>: Unverified Client host rejected: Generic DNS-Reverse-Lookup (PTR-Rule: 13); from=<> to=<***> proto=ESMTP helo=<WEB-SERVER.YISHENG-PHARM.COM>
