[Postfixbuch-users] unknown und smtpd_peer_init

[Rolf Mannhart - Casanova Digital]

hallo zusammen,

Wurde denke ich schon öfters auf der Liste besprochen, doch ich seh 
langsam den Wald
vor lauter Bäume nicht mehr.

Ich habe seit einiger Zeit nun sehr viele solcher Log-Einträge:

--schnipp--
Sep  4 09:10:48 mail postfix/smtpd[26704]: connect from 
unknown[217.25.93.67]
Sep  4 09:10:48 mail postfix/smtpd[26704]: NOQUEUE: reject: RCPT from 
unknown[217.25.93.67]: 554 Client host rejected: cannot find your 
hostname, [217.25.93.67]; from=<ffocus at shirenet.com> 
to=<clemens at buema.ch> proto=SMTP helo=<[217.25.93.67]>
Sep  4 09:10:48 mail postfix/smtpd[26704]: lost connection after RCPT 
from unknown[217.25.93.67]
Sep  4 09:10:48 mail postfix/smtpd[26704]: disconnect from 
unknown[217.25.93.67]
Sep  4 09:10:52 mail postfix/smtpd[26704]: warning: smtpd_peer_init: 
217.25.93.67: hostname 217-25-93-67.msk.internet2.ru verification 
failed: Name or service not known
Sep  4 09:10:52 mail postfix/smtpd[26704]: connect from 
unknown[217.25.93.67]
Sep  4 09:10:53 mail postfix/smtpd[26704]: NOQUEUE: reject: RCPT from 
unknown[217.25.93.67]: 554 Client host rejected: cannot find your 
hostname, [217.25.93.67]; from=<ffnha at hohoho.com> to=<clemens at buema.ch> 
proto=SMTP helo=<[217.25.93.67]>
Sep  4 09:10:53 mail postfix/smtpd[26704]: lost connection after RCPT 
from unknown[217.25.93.67]
Sep  4 09:10:53 mail postfix/smtpd[26704]: disconnect from 
unknown[217.25.93.67]
--schnipp--

So sieht die restriction in der main.cf aus:

--schnipp--
smtpd_etrn_restrictions = reject

smtpd_delay_reject = yes

smtpd_client_restrictions =
        permit_mynetworks,
        permit_sasl_authenticated,
        check_client_access pcre:/etc/postfix/pcre/dynip,
        check_client_access hash:/etc/postfix/hash/client_access,
        reject_unknown_client

smtpd_helo_restrictions =
        permit_mynetworks,   
        permit_sasl_authenticated,
        check_helo_access hash:/etc/postfix/hash/helo_access,
        reject_invalid_hostname

smtpd_sender_restrictions =
        permit_mynetworks, 
        permit_sasl_authenticated,
        check_sender_access hash:/etc/postfix/hash/sender_access,
        check_sender_access pcre:/etc/postfix/pcre/sender_access,
        reject_non_fqdn_sender,
        reject_unknown_sender_domain

smtpd_recipient_restrictions =
        permit_mynetworks, 
        permit_sasl_authenticated,
        reject_unauth_destination,      
        reject_unlisted_recipient,
        check_recipient_access hash:/etc/postfix/hash/recipient_access,
        reject_non_fqdn_recipient,
        reject_unknown_recipient_domain,
        check_policy_service inet:127.0.0.4:10031,
        permit
--schnapp--

Lässt sich hier irgendwas optimieren..?
Mir ist einfach der Log sehr unheimlich. Was bedeutet die 
Warning-Meldung genau?

Grüsse Rolf