zen is, for all practical purposes, perfect. You will not get false positives
as everyone in zen is either a confirmed spammer or in the PBL (policy block
list). That is to say, no one in zen should be connecting to your mailserver
to send mail, ever.
http://www.spamhaus.org/zen/
zen
On Tue, Aug 20, 2013 at 05:58:44AM CEST, LuKreme krem...@kreme.com said:
.
http://www.spamhaus.org/zen/
zen blocks these categories:
SBL Direct UBE sources, spam operations spam services
CSS Direct snowshoe spam sources detected via automation
CBL (3rd party exploits such as proxies,
http://www.spamhaus.org/zen/
zen blocks these categories:
SBL Direct UBE sources, spam operations spam services
CSS Direct snowshoe spam sources detected via automation
CBL (3rd party exploits such as proxies, trojans, etc.)
PBL End-user Non-MTA IP addresses set by ISP outbound mail
On Aug 20, 2013 8:03 AM, Erwan David er...@rail.eu.org wrote:
On Tue, Aug 20, 2013 at 05:58:44AM CEST, LuKreme krem...@kreme.com said:
.
http://www.spamhaus.org/zen/
zen blocks these categories:
SBL Direct UBE sources, spam operations spam services
CSS Direct snowshoe spam
On 8/20/2013 3:06 AM, Grant wrote:
Has anyone had a confirmed false positive with zen.spamhaus.org ?
http://lmgtfy.com/?q=spamhaus+false+positive
--
Stan
Whilst this subject is of some interest to many or most Postfix
users, it has departed from being fully on topic here. It would fit
better on a list like SDLU: http://spammers.dontlike.us
[Disclaimer: I am a list moderator at SDLU.)
On Sat, Aug 17, 2013 at 10:39:25AM -0700, Grant wrote:
On 16 Aug 2013, at 07:13 , Grant emailgr...@gmail.com wrote:
Use a dns white list with a negative score in the
postscreen_dnsbl_sites, and set a negative value for
postscreen_dnsbl_whitelist_threshold. Simple example:
# main.cf
postscreen_dnsbl_sites = zen.spamhaus.org list.dnswl.org*-1
Yes, that should whitelist known good sites from deep inspection,
certainly all the big mailers such as google, yahoo, comcast, etc.
However, I wonder why you don't have any dns blacklists such as
zen.spamhaus.org defined there. The ability of postscreen to reject
known bad sites without
[attribution of quotes reconstructed]
On Sat, Aug 17, 2013 at 12:54:44AM -0700, Grant wrote:
Noel:
However, I wonder why you don't have any dns blacklists such
as zen.spamhaus.org defined there. The ability of postscreen
to reject known bad sites without using precious smtpd
processes is
[attribution of quotes reconstructed]
On Sat, Aug 17, 2013 at 12:54:44AM -0700, Grant wrote:
Noel:
However, I wonder why you don't have any dns blacklists such
as zen.spamhaus.org defined there. The ability of postscreen
to reject known bad sites without using precious smtpd
processes
Am 17.08.2013 19:39, schrieb Grant:
Do you use that config on a commercial mail server? I don't mean to
say that you shouldn't, I'm just wondering if you do. In a commercial
environment, the penalty for a false positive is a customer unable to
reach the company behind the server which just
Do you use that config on a commercial mail server? I don't mean to
say that you shouldn't, I'm just wondering if you do. In a commercial
environment, the penalty for a false positive is a customer unable to
reach the company behind the server which just isn't tolerable
there is *no way*
Postfix 2.11 (currently in development snapshots) includes a
wonderful feature to bypass postscreen tests for clients listed in
dns whitelists, such as list.dnswl.org, greatly reducing unnecessary
tests.
I'm actually using postfix-2.11_pre20130710. Can you point me in the
right direction
So I'm sure I understand, well-known mail servers should be whitelisted?
No known mailer should ever hit your greylist. Think about it, what is the
greylist food? It's not to stop Google or comcast sending you mail. You know
those are legitimate mailers and they will retry, so what are you
On 8/16/2013 1:29 AM, Grant wrote:
Use a dns white list with a negative score in the
postscreen_dnsbl_sites, and set a negative value for
postscreen_dnsbl_whitelist_threshold. Simple example:
# main.cf
postscreen_dnsbl_sites = zen.spamhaus.org list.dnswl.org*-1
Use a dns white list with a negative score in the
postscreen_dnsbl_sites, and set a negative value for
postscreen_dnsbl_whitelist_threshold. Simple example:
# main.cf
postscreen_dnsbl_sites = zen.spamhaus.org list.dnswl.org*-1
postscreen_dnsbl_whitelist_threshold = -1
I've added the
On 2013-08-16 9:13 AM, Grant emailgr...@gmail.com wrote:
Yes, that should whitelist known good sites from deep inspection,
certainly all the big mailers such as google, yahoo, comcast, etc.
However, I wonder why you don't have any dns blacklists such as
zen.spamhaus.org defined there. The
A few people have told me they received an email error message after
emailing me. I'm trying to get a copy of one of the error emails,
but I can't imagine what would cause that besides possibly my
greylisting. Has greylisting been known to lead to email error
messages being sent to senders
On 8/15/2013 2:30 AM, Grant wrote:
A few people have told me they received an email error message after
emailing me. I'm trying to get a copy of one of the error emails,
but I can't imagine what would cause that besides possibly my
greylisting. Has greylisting been known to lead to email
On 15 Aug 2013, at 01:30 , Grant emailgr...@gmail.com wrote:
A few people have told me they received an email error message after
emailing me. I'm trying to get a copy of one of the error emails,
but I can't imagine what would cause that besides possibly my
greylisting. Has greylisting
A few people have told me they received an email error message after
emailing me. I'm trying to get a copy of one of the error emails, but I
can't imagine what would cause that besides possibly my greylisting. Has
greylisting been known to lead to email error messages being sent to
senders in
!-- On Wed 14.Aug'13 at 11:23:11 BST, Grant (emailgr...@gmail.com), wrote:
A few people have told me they received an email error message after
emailing me. I'm trying to get a copy of one of the error emails, but I
can't imagine what would cause that besides possibly my greylisting. Has
On 8/14/2013 5:23 AM, Grant wrote:
A few people have told me they received an email error message after
emailing me. I'm trying to get a copy of one of the error emails,
but I can't imagine what would cause that besides possibly my
greylisting. Has greylisting been known to lead to email
On Wed, Aug 14, 2013 at 03:23:11AM -0700, Grant wrote:
A few people have told me they received an email error message
after emailing me. I'm trying to get a copy of one of the error
emails, but I can't imagine what would cause that besides possibly
my greylisting. Has greylisting been
A few people have told me they received an email error message after
emailing me. I'm trying to get a copy of one of the error emails,
but I can't imagine what would cause that besides possibly my
greylisting. Has greylisting been known to lead to email error
messages being sent to senders
A few people have told me they received an email error message
after emailing me. I'm trying to get a copy of one of the error
emails, but I can't imagine what would cause that besides possibly
my greylisting. Has greylisting been known to lead to email error
messages being sent to senders
On 2013-08-14 11:24 AM, Grant emailgr...@gmail.com wrote:
You were right, I'm using postscreen and deep protocol checks.
Turn them off (did you read the warnings associated with enabling them?)...
--
Best regards,
*/Charles /*
On 8/14/2013 10:21 AM, Grant wrote:
A few people have told me they received an email error message after
emailing me. I'm trying to get a copy of one of the error emails,
but I can't imagine what would cause that besides possibly my
greylisting. Has greylisting been known to lead to email
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