You can implement a RBL system to share with others.
Eliezer
On 06/19/2014 05:23 PM, Jeffrey 'jf' Lim wrote:
I sort of do this myself... except I dont use automated stuff like
fail2ban. When I see a pattern, I investigate, and if it comes down to a
known (or "somewhat known") spammer-hosting or
On Thu, Jun 19, 2014 at 10:04 PM, Birta Levente
wrote:
> On 19/06/2014 16:57, Giuseppe De Nicolo' wrote:
>
>> Hi,
>>
>> I have a question for you more experienced admin , I have some good
>> abuse on my servers by IP listed in spam list , since I am using postscreen
>> to block those all is
On 19/06/2014 16:57, Giuseppe De Nicolo' wrote:
Hi,
I have a question for you more experienced admin , I have some
good abuse on my servers by IP listed in spam list , since I am using
postscreen to block those all is good , anyway I thought then a good
idea to just drop that traffic an
Hi,
I have a question for you more experienced admin , I have some
good abuse on my servers by IP listed in spam list , since I am using
postscreen to block those all is good , anyway I thought then a good
idea to just drop that traffic and avoid myself thousand of log line
with 450 4.7
On 11/28/2012 7:55 AM, vi...@vheuser.com wrote:
> I am receiving spam from ever changing client IP addresses. Each spam
> has other tiny variations that prevent string matching. The one thing
> they all have in common is the owner of the IP addresses. Is there any
> way to do lookup of the clien
Am 28.11.2012 19:01, schrieb vi...@vheuser.com:
> - Original Message - From: "Wietse Venema"
> To: "Postfix users"
> Sent: Wednesday, November 28, 2012 9:11 AM
> Subject: Re: Need help blocking spam by IP address owner
>
>
>> vi...@vh
- Original Message -
From: "Wietse Venema"
To: "Postfix users"
Sent: Wednesday, November 28, 2012 9:11 AM
Subject: Re: Need help blocking spam by IP address owner
vi...@vheuser.com:
I am receiving spam from ever changing client IP addresses. Each spam
has
o
vi...@vheuser.com:
> I am receiving spam from ever changing client IP addresses. Each spam has
> other tiny variations that prevent string matching. The one thing they all
> have in common is the owner of the IP addresses. Is there any way to do
> lookup of the client IP owner at Prescreen or
Am 28.11.2012 14:55, schrieb vi...@vheuser.com:
> I am receiving spam from ever changing client IP addresses. Each spam has
> other tiny variations that prevent
> string matching. The one thing they all have in common is the owner of the
> IP addresses. Is there any way to do
> lookup of the
I am receiving spam from ever changing client IP addresses. Each spam has
other tiny variations that prevent string matching. The one thing they all
have in common is the owner of the IP addresses. Is there any way to do
lookup of the client IP owner at Prescreen or SMTP time to REJECT the
i
I am receiving spam from an ever changing list of client IP addresses. Each
spam has tiny variations that prevent string matching. The one thing they
all have in common is the owner of the IP addresses. Is there any way to do
a prescreen or SMTP time lookup of the registrar/owner of the clien
Nandini Mocherla(nandini.moche...@sun.com)@Fri, Feb 06, 2009 at 09:49:53AM
-0800:
> Hi,
>
> I am new to postfix and thinking for a way to block the email address which
> does not come from that domain. For example, if someone with a @xxx.com
> email sends to a list it must come from a server in
As there is every possibility that spammers can also send with real
user's id and I am planning to have a check that would be able to
compare the From: and the Message-Id domains to check for spoofed
messages coming in from an open relay. Its just an idea to eliminate
every possible attack. A
Nandini Mocherla wrote, at 02/06/2009 12:49 PM:
> I am new to postfix and thinking for a way to block the email address
> which does not come from that domain. For example, if someone with a
> @xxx.com email sends to a list it must come from a server in the xxx.com
> domain else it should be rejec
Hi,
I am new to postfix and thinking for a way to block the email address
which does not come from that domain. For example, if someone with a
@xxx.com email sends to a list it must come from a server in the xxx.com
domain else it should be rejected. Is it possible to do this?
On Mon, 12 Jan 2009, bijayant kumar wrote:
> I want to ask one thing, can it be possible to block only those mails in
> which "From and To" address are same with help of regular expression
> support? It means that reject mails if From and To address are same
> otherwise accept.
There may be some
Bijayant Kumar
--- On Thu, 8/1/09, Chris Babcock wrote:
> From: Chris Babcock
> Subject: Re: Blocking Spam
> To: bijayan...@yahoo.com
> Cc: "postfix"
> Date: Thursday, 8 January, 2009, 5:39 PM
> > > It's doing what you're asking...
&g
bijayant kumar a écrit :
> My question is, spammers forges the from address and sends the spam where
> from address and to address are same. Like in my case I am getting the spam
> mails from bijay...@kavach.com to bijay...@kavach.com. So, I googled and
> found that after reject_unauth_destinati
> > It's doing what you're asking... "REJECT"
> > means bounce the message. You
> > probably want to "DISCARD" it.
> >
> DISCARD means nobody will receive the bounce message, right? If any
> bodies mails is rejected from our server he/she will never know what
> was the issue.
Right, which is wh
Bijayant Kumar
--- On Thu, 8/1/09, Chris Babcock wrote:
> From: Chris Babcock
> Subject: Re: Blocking Spam
> To: postfix-users@postfix.org
> Cc: bijayan...@yahoo.com
> Date: Thursday, 8 January, 2009, 2:13 PM
> On Wed, 7 Jan 2009 23:30:06 -0800 (PST)
>
On Wed, 7 Jan 2009 23:30:06 -0800 (PST)
bijayant kumar wrote:
>
>
> Bijayant Kumar
>
>
> --- On Tue, 6/1/09, DJ Lucas wrote:
>
> > From: DJ Lucas
> > Subject: Re: Blocking Spam
> > To: postfix-users@postfix.org
> > Date: Tuesday, 6 Ja
Bijayant Kumar
--- On Tue, 6/1/09, DJ Lucas wrote:
> From: DJ Lucas
> Subject: Re: Blocking Spam
> To: postfix-users@postfix.org
> Date: Tuesday, 6 January, 2009, 2:00 PM
> bijayant kumar wrote:
> > Bijayant Kumar
> >
> >
> > --- On Tue, 6/1/09, D
bijayant kumar wrote:
Bijayant Kumar
--- On Tue, 6/1/09, DJ Lucas wrote:
From: DJ Lucas
Subject: Re: Blocking Spam
To: "postfix"
Date: Tuesday, 6 January, 2009, 6:34 AM
bijayant kumar wrote:
Hello list,
Now a days we are getting lots of spam emails from our
own
Bijayant Kumar
--- On Tue, 6/1/09, DJ Lucas wrote:
> From: DJ Lucas
> Subject: Re: Blocking Spam
> To: "postfix"
> Date: Tuesday, 6 January, 2009, 6:34 AM
> bijayant kumar wrote:
> > Hello list,
> >
> > Now a days we are getting lots of spam email
bijayant kumar wrote:
Hello list,
Now a days we are getting lots of spam emails from our own email-ids. I want to
block this. I have tried to block senders domains which are local and not doing
smtp-auth. While implementing I come across a new problem like, when I rejected
a spam coming from
Hello list,
Now a days we are getting lots of spam emails from our own email-ids. I want to
block this. I have tried to block senders domains which are local and not doing
smtp-auth. While implementing I come across a new problem like, when I rejected
a spam coming from my own email-id from ano
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