Displaying 14 results from an estimated 14 matches similar to: "Odd Feature Request - RBL blacklist lookup to prevent authentication"
2008 Oct 15
1
Sendmail rbl - Need to bypass rbl for one local address
Hi,
Hope any one can help me. I am running centos 5.2 with sendmail and rbl feature.? I need to recieve all emails come to my sales account regardless of rbl .
I looked on web and gave up. All I found was if I added To:sales@ ok in my sendmail.mc , sales account will bypass rbl and get all the emails but its not working. Any help ?
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An HTML
2008 Jan 10
2
FYI: CentOS mailserver on nixspam RBL
In case someone's using the nixspam RBL and wondering why the influx from
the CentOS mailing lists has stopped today:
http://www.dnsbl.manitu.net/lookup.php?language=en&value=72.21.40.12
Kai
--
Kai Sch?tzl, Berlin, Germany
Get your web at Conactive Internet Services: http://www.conactive.com
2000 Oct 31
1
offtopic--using rbl
I just read about the webpage
http://www.summersault.com/chris/techno/qmail/qmail-antispam.html
on the qmail list. This makes it possible to use RBL on a per user
basis. Perhaps somebody can adopt this for Postfix and mailman---or
whatever is used to manage this list?
Mate
2012 Apr 05
1
dns cache rbl lists?
No idea where else to ask this and get a real qualified answer but here.
Not exactly pure centos question....but...
I am adding blacklists to my postfix smtpd settings.
I have the inkling that after the first lookup for a domain or ip that
my dns caches the result and I no longer bother the RBL or RHSBL list
owners anymore in that instance.
Is that correct? I hate to waste their resources if
2019 Jun 17
0
Postfix and choice of RBL
On 6/17/2019 6:20 AM, Nicolas Kovacs wrote:
> Hi,
>
> I'm managing several mail servers running CentOS 7, Postfix and Dovecot.
> SpamAssassin is filtering mail nicely, but I'm considering using RBL
> (blacklists) to take some load off the servers.
>
> General question to those of you who use RBL. Which lists do you
> recommend using?
The best free blacklist that
2019 Jun 17
0
Postfix and choice of RBL
On 2019-06-17 06:20, Nicolas Kovacs wrote:
> Hi,
>
> I'm managing several mail servers running CentOS 7, Postfix and
> Dovecot.
> SpamAssassin is filtering mail nicely, but I'm considering using RBL
> (blacklists) to take some load off the servers.
>
> General question to those of you who use RBL. Which lists do you
> recommend using?
In my
2019 Jun 17
1
Postfix and choice of RBL
Am 17.06.2019 um 18:09 schrieb Mike Burger:
> On 2019-06-17 06:20, Nicolas Kovacs wrote:
>> Hi,
>>
>> I'm managing several mail servers running CentOS 7, Postfix and Dovecot.
>> SpamAssassin is filtering mail nicely, but I'm considering using RBL
>> (blacklists) to take some load off the servers.
>>
>> General question to those of you who use
2019 Jun 17
1
Postfix and choice of RBL
Am 17.06.2019 um 16:50 schrieb Bowie Bailey:
> On 6/17/2019 6:20 AM, Nicolas Kovacs wrote:
>> Hi,
>>
>> I'm managing several mail servers running CentOS 7, Postfix and Dovecot.
>> SpamAssassin is filtering mail nicely, but I'm considering using RBL
>> (blacklists) to take some load off the servers.
>>
>> General question to those of you who use
2015 Mar 05
1
RBL with stock Dovecot 2.2.15 (was Re: IP drop list)
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1
Steffen Kaiser wrote:
> passdb { driver = ipdeny args = <host>/matchpattern/action ....
> *** }
>
With next passdb{} as 1st in chain:
passdb {
driver = checkpassword
args = "/tmp/chktst ip=%r service=%s"
result_success = continue
result_failure = return-fail
}
and this script
BEGIN /tmp/chktst
#!/bin/bash
echo
2018 Aug 23
1
allow_nets based on RBL
This was brought up in 2014, and left without conclusion, so I thought
it would be time to bump it :)
I would love a way to do allow_nets based on an RBL check, could this be
added to the feature-list?
https://wiki2.dovecot.org/PasswordDatabase/ExtraFields/AllowNets
Thanks
--
Tom
2014 Feb 04
3
Applying a DNS RBL to deny authentication?
Hope to get some attention about this idea to reduce hacking passwords.
Here is a list of about 700,000 IP addresses that are hacking passwords
through SMTP AUTH
http://ipadmin.junkemailfilter.com/auth-hack.txt
This is a list of IP addresses that attempted to authenticate against my
fake AUTH advertizing on servers with no authentication. We do front end
spam filtering for thousands of
2019 Jun 17
5
Postfix and choice of RBL
Hi,
I'm managing several mail servers running CentOS 7, Postfix and Dovecot.
SpamAssassin is filtering mail nicely, but I'm considering using RBL
(blacklists) to take some load off the servers.
General question to those of you who use RBL. Which lists do you
recommend using?
Cheers,
Niki
--
Microlinux - Solutions informatiques durables
7, place de l'?glise - 30730 Montpezat
Site :
2007 Mar 14
5
sendmail and rbl blocking - generating statistics
I have enabled the feature in sendmail.mc to check with spamhaus for
spammers. However since this block is being made at MTA level, I would
like to know is something can be done to obtain statistics of blocked
attemps.
thanks
--
------------------------------------------------------------
Erick Perez
Panama Sistemas
Integradores de Telefonia IP y Soluciones Para Centros de Datos
Panama,
2010 Apr 15
5
Apparent BIND problem doing RBL lookups for Postfix
My apologies if I'm posting the wrong place, or am asking a common
question. All my looking so far hasn't turned up anything very useful
in knowing what to look at, or what to modify.
---
CentOS 5, running BIND 9.3.6
i386
Hardware:
P4, 2.8Ghz, 1G memory
Sata drives - non mirrored etc.
Load is light, usually under 0.1
--
This box is running Postfix as our mail server. BIND (9.3.6)