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Reverse Check Protocol Error

gmane.mail.cgatepro.general Date: Wednesday 27th December 2006 12:04:52 UTC (over 9 years ago) On Wed, 27 Dec 2006 06:39:45 -0500 "William James" wrote: > > >> >I have had to disable the reverse check because to much >>legitimate email >> >was being blocked. >>> >>> I can go to tools like www.dnsstuff.com and do an email >>>check that works >>> fine on MANY of the connections that fail on CGP. Using >>>5.1.3 for >>> x86_64. My logs are filled with errors like below, but >>>when I check the >>> addresses on dnsstuff or manually telnetting, the >>>addresses work fine, >>> although CGP blocks them with a protocol error. What >>>gives? Anyone else >>> blocking legitimate email with reverse-check in CGP? >>> >>> 00:05:10.061 1 SMTPI-009325([71.130.153.138]) >>>Return-Path >>> [emailprotected]' rejected: reverse check protocol error >>> 00:05:10.061 4 SMTPI-009325([71.130.153.138]) rsp: 478 >>>[emailprotected] >>> reverse check protocol error >>> >>> Will >>> >> No word from Stalker and nobody else seeing this? I >>seriously doubt I am >> the only one. >> >> Will > No body else seen this? I am shocked. I don't use reverse connect anymore from CGP as we were blocked at one time by a few major web mail places (hotmail and msn to name a couple) for abuse. The reverse connect was verifying upwards of 10,000-12,000 email addresses per day with a failure rate of about that. Even if you have the add header option turned on, the test is still there. A mass quantity of forged return-paths can be a killer on the reverse connect. ############################################################# This message is sent to you because you are subscribed to the mailing list . To unsubscribe, E-mail to: To switch to the DIGEST mode, E-mail to To switch to the INDEX mode, E-mail to Send administrative queries to CD: 3ms

Protocol Error? Newsgroups: gmane.mail.cgatepro.general Date: Wednesday 27th December 2006 12:02:02 UTC (over 9 years ago) Will Reverse DNS fails on a lot of email servers, as many ISP's don't update their reverse maps to the customer...see this address for a possible case in point! -- Martin Hepworth Snr Systems Administrator Solid State Logic Tel: +44 (0)1865 842300 > -----Original Message----- > From: CommuniGate Pro Discussions [mailto:[emailprotected]] On > Behalf Of William James > Sent: 27 December 2006 11:40 > To: CommuniGate Pro http://permalink.gmane.org/gmane.mail.cgatepro.general/32530 Discussions > Subject: Re: Reverse Check Protocol Error? > > > > > >I have had to disable the reverse check because to much legitimate > email > > >was being blocked. > >> > >> I can go to tools like www.dnsstuff.com and do an email check that > works > >> fine on MANY http://permalink.gmane.org/gmane.mail.cgatepro.general/32529 of the connections that fail on CGP. Using 5.1.3 for > >> x86_64. My logs are filled with errors like below, but when I check the > >> addresses on dnsstuff or manually telnetting, the addresses work fine, > >> although CGP blocks them with a protocol error. What gives? Anyone > else > >> blocking legitimate email with reverse-check in CGP? > >> > >> 00:05:10.061 1 SMTPI-009325([71.130.153.138]) Return-Path > >> [emailprotected]' rejected: reverse check protocol error > >> 00:05:10.061 4 SMTPI-009325([71.130.153.138]) rsp: 478 [emailprotected] > >> reverse check protocol error > >> > >> Will > >> > > No word from Stalker and nobody else seeing this? I seriously doubt I > am > > the only one. > > > > Will > No body else seen this? I am shocked. > > Will > > > ############################################################# > This message is sent to you because you are subscribed to > the mailing list . > To unsubscribe, E-mail to:

codes ("address rejectedwith reverse-check", http://demos.local.lists.cgp.narkive.com/Vdxx2q44/value-of-x-reverse-check-header "reverse check protocol error"...)Is there a liste somewhere with all these failure codes ?Thanks !Gregory#############################################################This message is https://www.opennet.ru/openforum/vsluhforumID10/4102.html sent to you because you are subscribed tothe mailing list <***@mail.stalker.com>.To unsubscribe, E-mail to: To switch to reverse check the DIGEST mode, E-mail to To switch to the INDEX mode, E-mail to Send administrative queries to Michael Wise 2007-02-20 17:19:45 UTC PermalinkRaw Message Stefan Seiz 2007-02-20 18:55:33 UTC PermalinkRaw Message X-Reverse-Check: address rejected reverse check protocol with reverse-checkX-Reverse-Check: connection closed by peerX-Reverse-Check: connection refusedX-Reverse-Check: no relay availableX-Reverse-Check: no responseX-Reverse-Check: read time-outX-Reverse-Check: reverse check protocol error[snip]Great Info Mike. Thanks a lot for sharing!--Stefan Seiz Spamto: <***@imd.net>#############################################################This message is sent to you because you are subscribed tothe mailing list <***@mail.stalker.com>.To unsubscribe, E-mail to: To switch to the DIGEST mode, E-mail to To switch to the INDEX mode, E-mail to Send administrative queries to 2 Replies 3 Views Switch to linear view Disable enhanced parsing Permalink to this page Thread Navigation Gregory Hedo 2007-02-20 12:32:12 UTC Michael Wise 2007-02-20 17:19:45 UTC Stefan Seiz 2007-02-20 18:55:33 UTC about - legalese Loading...

(Блокирование спама и вирусов / Linux) Изначальное сообщение [ Отслеживать ] "Client host rejected: cannot find your hostname" +/– Сообщение от koblin (ok) on 19-Янв-09,11:16 День добрый!Стоит Linux + postfix.Возникла следующая ситуация с отправкой почты на один домен. Отправляю письмо, удаленная система пытается сделать проверку MAIL FROM. Мой почтовик делает проверку входящего запроса и возвращает Client host rejected: cannot find your hostname.Удаленная система считает что проверка MAIL FROM провалилась и сообщает мне478 ... reverse check protocol error (in reply to MAIL FROM command)Причина всей этой фигни в том что мой почтовик не может сделать resolveip для удаленного сервера. resolveip 212.154.167.215resolveip: Unable to find hostname for '212.154.167.215'Как понимаю за блокировку отвечает reject_unknown_client?!Должен ли я принимать почту от таких хостов или администратор удаленной системы должен настроить обратную зону для своего домена? Или можно добавить IP этого сервера в "белый список"?Кто виноват и что делать? =)в конфиге:smtpd_recipient_restrictions = permit_mynetworks,permit_sasl_authenticated,reject_unknown_client,reject_unauth_destination,reject_invalid_hostname,reject_non_fqdn_hostname,# check_policy_service unix:private/policy# reject_unknown_hostname,# reject_non_fqdn_sender,reject_unknown_sender_domain Ответить | Правка | Cообщить модератору Оглавление Client host rejected: cannot find your hostname, Scarab, 12:10, 19-Янв-09, (1) Client host rejected: cannot find your hostname, koblin, 12:21, 19-Янв-09, (2) Client host rejected: cannot find your hostname, Scarab, 12:46, 19-Янв-09, (3) Client host rejected: cannot find your hostname, koblin, 13:17, 19-Янв-09, (4) Client host rejected: cannot find your hostname, Nyako, 12:07, 22-Май-14, (5) Сообщения по теме [Сортировка по времени | RSS] 1. "Client host rejected: cannot find your hostname" +/– Сообщение от Scarab (??) on 19-Янв-09,12:10 >Причина всей этой фигни в том что мой почтовик не может сделать >resolveip для удаленного сервера. >resolveip 212.154.167.215 >resolveip: Unable to find hostname for '212.154.167.215' >>Как понимаю за блокировку отвечает reject_unknown_client?! >>Должен ли я принимать почту от таких хостов или администратор удаленной системы >должен настроить обратную зону для своего домена? Или можно добавить IP >этого сервера в "белый список"? Вопрос чисто идеологический. Можно вообще не принимать почту ни от кого, тогда и спама не будет :)Каждый админ решает для себя сам - на основании каких критериев он будет или не будет приним

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Reverse Check Protocol Error p gmane mail cgatepro general Date Wednesday th December UTC over years ago On Wed Dec - William James cgp-list jamesnetworks com wrote I have had to disable the reverse check because to much legitimate email was being blocked I can go to tools like www dnsstuff com and do an email check that works fine on MANY of the connections that fail on CGP Using for x My logs are filled with errors like below but when I check the addresses on dnsstuff or manually telnetting the addresses work fine although CGP blocks them with

reverse check protocol error in reply to mail from command
Reverse Check Protocol Error In Reply To Mail From Command p Linux Client host rejected cannot find your hostname ndash koblin ok on - - Linux postfix MAIL FROM Client host rejected cannot find your hostname MAIL FROM reverse check protocol error in reply to MAIL FROM command resolveip resolveip resolveip Unable to find hostname for ' ' reject unknown client IP smtpd recipient restrictions permit mynetworks permit sasl authenticated reject unknown client reject unauth destination reject invalid hostname reject non fqdn hostname check policy service unix private policy reject unknown hostname reject non fqdn sender reject unknown sender domain

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