Hi,
I'm trying to evaluate the block lists that are available to be used
at SMTP connection time with reject_maps_rbl, and wondered if someone
had any input. I have spent quite a bit of time researching many of
the block lists, but much of the information is somewhat old and I'm
concerned that it'
* Alex :
> Hi,
>
> I'm trying to evaluate the block lists that are available to be used
> at SMTP connection time with reject_maps_rbl,
reject_maps_rbl is deprecated. Use reject_rbl_client et.al.
> Is there a "best practices" document that includes recommendations or
> suggestions on which RBLs
On 04/10/2010 01:09 AM, Alex wrote:
> I'm trying to evaluate the block lists that are available to be used
I don't like allowing any blacklists to have serious power over blocking
e-mail. I prefer using SpamAssassin, which will do lookups on many RBLs,
and then use the results to influence the sc
Sean Reifschneider a écrit :
> On 04/10/2010 01:09 AM, Alex wrote:
>> I'm trying to evaluate the block lists that are available to be used
>
> I don't like allowing any blacklists to have serious power over blocking
> e-mail. I prefer using SpamAssassin, which will do lookups on many RBLs,
> and
Reinaldo etse:de Carvalho:
> That would not explain why sending to an IMAP server is
> faster than sending that same message to an SMTP server.
Reinaldo de Carvalho:
> Send a unique message is faster than send twice (twice for saving on
> IMAP server).
Saving to the IMAP server?
So this is real
On 2010-04-10 mouss wrote:
> Sean Reifschneider a écrit :
>> I don't like allowing any blacklists to have serious power over
>> blocking e-mail. I prefer using SpamAssassin, which will do lookups
>> on many RBLs, and then use the results to influence the score. So if
>> one RBL says something bad
On Sat, Apr 10, 2010 at 10:19 AM, Wietse Venema wrote:
> Reinaldo de Carvalho:
>> Send a unique message is faster than send twice (twice for saving on
>> IMAP server).
>
> Saving to the IMAP server?
>
> So this is really about sending yourself mail via IMAP, instead of
> listing yourself in the Cc
Ansgar Wiechers a écrit :
> On 2010-04-10 mouss wrote:
>> Sean Reifschneider a écrit :
>>> I don't like allowing any blacklists to have serious power over
>>> blocking e-mail. I prefer using SpamAssassin, which will do lookups
>>> on many RBLs, and then use the results to influence the score. So
I am testing sender address verification on our servers. When I first
enable reject_unverified_sender before RBL testing, in 1 day, my IP
addresses was in CBL blacklist after 1 year of clerance.
Then I have tuned the configuration and put sender address
verification after most of the UCE measures.
Ralf Hildebrandt put forth on 4/10/2010 2:21 AM:
> I'm using zen.spamhaus.org in postscreen and,
>
>reject_rbl_client bl.spamcop.net
>reject_rbl_client bogons.cymru.com
>reject_rhsbl_sender dbl.spamhaus.org
>reject_rhsbl_reverse_client dbl.spamhaus.org
On Sat, Apr 10, 2010 at 7:49 PM, Stan Hoeppner wrote:
> smtpd_recipient_restrictions =
> ...
> check_client_access regexp:/etc/postfix/fqrdns.regexp
> ...
>
> /etc/postfix/fqrdns.regexp
> http://www.hardwarefreak.com/fqrdns.regexp
>
> This regex file is free for anyone to use
Reinaldo de Carvalho put forth on 4/10/2010 5:56 PM:
> In other words:
>
> /([0-9]{1,3}(\.|-)){3}.*\.[a-z]+/ reject generic hostname
> /(^a?dsl|a?dsl(\.|-)|(\.|-)a?dsl|(\.|-)d(yn|ip|ial)(\.|-)|(\.|-)cable(\.|-)|(\.|-)user(\.|-)|^dynamic|(\.|-)dynamic|dynamic(\.|-)|(\.|-)ppp(oe)?(\.|-|)|^ppp)/
>
On Sat, Apr 10, 2010 at 8:10 PM, Stan Hoeppner wrote:
>
> Except these aren't fully qualified patterns, can generate FPs, and cause
> other problems. The patterns I shared are fully qualified, so the chance of
> FPs is zero or near zero. Also note the domain specific reject text in my
> patterns
On 04/10/2010 03:21 AM, Ralf Hildebrandt wrote:
>
> I'm using zen.spamhaus.org in postscreen and,
>
>reject_rbl_client bl.spamcop.net
>reject_rbl_client bogons.cymru.com
>reject_rhsbl_sender dbl.spamhaus.org
>reject_rhsbl_reverse_client dbl.spamhaus.org
Hi,
>> I'm using zen.spamhaus.org in postscreen and,
Where can I find information on postscreen?
>> reject_rbl_client bl.spamcop.net
>> reject_rbl_client bogons.cymru.com
I would also be interested in info on using the bogons list here. How
does that apply here, consid
On Sat, 10 Apr 2010, Alex wrote:
> >> I'm using zen.spamhaus.org in postscreen and,
>
> Where can I find information on postscreen?
postscreen(8) is part of the 2.8 experimental release:
http://www.postfix.org/postscreen.8.html
--
Sahil Tandon
On 4/10/2010 5:49 PM, Stan Hoeppner wrote:
I reject most spam via other methods, mostly pcre/regex and cidr tables. My
dnsbl queries reject less than 1% of my spam load. Plug the following
dynamic/generic rdns regex table into your Postfix configuration and see if
it catches some spam for you.
Noel Jones put forth on 4/10/2010 8:16 PM:
> On 4/10/2010 5:49 PM, Stan Hoeppner wrote:
>> smtpd_recipient_restrictions =
>> ...
>> check_client_access regexp:/etc/postfix/fqrdns.regexp
>> ...
>
>
> You'll probably get more hits using
> check_reverse_client_hostname_access. That
>Should I disable SAV for some domains to prevent blacklisting? Which domains?
Yes. All of them.
SAV is widely considered to be abusive, since it is technically
indistinguishable from spammer address verification. It's also rather
ineffective since great amounts of spam now uses random sender
a
Alex put forth on 4/10/2010 7:28 PM:
>> smtpd_recipient_restrictions =
>>...
>>reject_rbl_client zen.spamhaus.org
>>reject_rhsbl_client dbl.spamhaus.org
>>reject_rhsbl_sender dbl.spamhaus.org
>>reject_rhsbl_helo dbl.spamhaus.org
>
> I'm familiar with ze
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