actually about a year and a half ago there was a new spambot which was
re-sending the message after a temporary reject. But it did it
precisely in 4 minutes after the first rejection,
and never tried again. So, increasing the greylisting timeout to 5 minutes
has solved the problem :)
-
Stanislav Sinyagin schrieb:
> I don't know anything about proper spammers. Greylisting has reduced the
> amount of incoming spam significantly, probably at 90-95%. Of course there
> are spambots which play around greylisting, but they aren't yet that widely
> used.
Agreed.
For my mail system
Am 11.09.2008 um 20:28 schrieb [EMAIL PROTECTED]:
> great idea,
> whitelisting every system on the world which sends confirmation
> email ..
> it will be an big efford for that small country to convince the rest
> of the world
> ;-)
To be precise:
I use dnsbl.sorbs.net to blacklist all dyna
Salut, Stanislav,
On Thu, 11 Sep 2008 03:54:47 -0700 (PDT), Stanislav Sinyagin wrote:
> Anyway, who's going to send email directly from a broadband
> connection, instead of using the ISP's relay? :-)
The case of an ISP's mail server accepting mail originating from a
non-ISP address (e.g. not @tis
great idea,
whitelisting every system on the world which sends confirmation email ..
it will be an big efford for that small country to convince the rest of the
world
;-)
> Jeroen Massar schrieb:
> > Marc SCHAEFER wrote:
> > [..]
> >
> >> I am a heavy users of those RBL lists, they offer q
Jeroen Massar schrieb:
> Marc SCHAEFER wrote:
> [..]
>
>> I am a heavy users of those RBL lists, they offer quite a bit of
>> protection (but not as much as you might think, and with
>>
>
> You should use RBL's only for *scoring*; not for decision making and
> then directly rejecting based
I think that server (coloured) lists are but an easy way out for for those
who either aren't willing or able to do spam mail feature analysis. Spam is
spam, even when it comes from a respectable server that has been temporarily
compromised.
All the up-and-coming premium spam services shy away f
Am 11 Sep 2008 um 5:17 hat Stanislav Sinyagin geschrieben:
> > Greylisting only delays mails. Proper spammers just use ISP relays and
>
how about registering on an page and waiting for the accept email for hours
because your ISP do graylisting ?
taking a relax and drink some beers till the ser
:: Greylisting only delays mails. Proper spammers just use ISP relays and
Well recent analysis show that % of open proxies and botnets
using fake smtp are still quite important.
> Greylisting only delays mails. Proper spammers just use ISP relays and
> then they will try forever. Or they will just nicely do the full SMTP
> thing for the first message and try again later, or stall sending to you
> as the 450 is recognized and spam run you again later. So many easy ways
> a
Marc SCHAEFER wrote:
[..]
> I am a heavy users of those RBL lists, they offer quite a bit of
> protection (but not as much as you might think, and with
You should use RBL's only for *scoring*; not for decision making and
then directly rejecting based on it.
> quite a few false positives: greylist
On Thu, Sep 11, 2008 at 04:32:50AM -0700, Stanislav Sinyagin wrote:
> if the server IP address is added to some blacklist like SORBS,
> the notification is sent to the contact address of the reverse zone.
A properly managed mail server's admin would notice that quite quickly.
Infact, I(*) have b
> Marc SCHAEFER wrote:
>
> It's not only very poor marketing, it's incredibly arrogant. Selling a static
> IP and then charging extra for the reverse mapping ...
That was reason enough for me to change provider.
There are other ISPs on this list which are RIPE compliant, less arrogant and
more
Stanislav Sinyagin wrote:
> there is at least one reason for not sending email directly:
>
> if the server IP address is added to some blacklist like SORBS,
> the notification is sent to the contact address of the reverse zone.
> If the server is under the ISP's maintenance, the ISP
> will (suppo
there is at least one reason for not sending email directly:
if the server IP address is added to some blacklist like SORBS,
the notification is sent to the contact address of the reverse zone.
If the server is under the ISP's maintenance, the ISP
will (supposedly) notice this event and try its
We had asked several time green.ch for a delegation for a MPS8 and MPS16
contract - and they denied it. So submitted a list of
hosts to be added to their DNS for adding PTRs. No reply, and still only the
default PTR entries...
Has anything changed in this since the TIC merger?
-Kurt.
-Orig
Stanislav Sinyagin wrote:
> If the reverse mapping points to some valid A record, why
> do you need to change it?
In this case, the reverse lookup returns something like
zux000-nnn-nnn.adsl.green.ch.
The customer is (quite reasonably) running a mailserver on it, and would
like the reverse map
Stanislav Sinyagin wrote:
> Anyway, who's going to send email directly from a broadband
> connection, instead of using the ISP's relay? :-)
>
Provided everything is properly set up, why shouldn't they?
/Per Jessen, Herrliberg
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swinog mailing li
well, I used to support customers which were running mail servers
behind a broadband connection. Most spam filters and blacklists like SORBS
check the reverse naming, and if it doesn't have words like cable, ppp, dynamic
and such, it's quite safe to work with it.
It just has to have some decent
Hey Stan
> There aren't many applications that really depend on the reverse name -
> for most of the things it's enough that the reverse name is a valid one.
You never tried to operate a mailserver behind a DSL-connection yet,
right? :)
--
Best regards,
Roman Hochuli
Operations Manager
nexell
If the reverse mapping points to some valid A record, why
do you need to change it?
There aren't many applications that really depend on the reverse name -
for most of the things it's enough that the reverse name is a valid one.
- Original Message
> From: Per Jessen <[EMAIL PROTECTE
Marc SCHAEFER wrote:
> On Thu, Sep 11, 2008 at 10:37:35AM +0200, Per Jessen wrote:
>> One of my customers has just been told he needs to pay to get a DNS
>> reverse map entry for thei Green ADSL line with fixed IP.
>> Is that really true??
>
> I had a similar query lately, and [EMAIL PROTECTED] r
On Thu, Sep 11, 2008 at 10:37:35AM +0200, Per Jessen wrote:
> One of my customers has just been told he needs to pay to get a DNS
> reverse map entry for thei Green ADSL line with fixed IP.
> Is that really true??
I had a similar query lately, and [EMAIL PROTECTED] replied that
with MPS1 (1 IP ad
One of my customers has just been told he needs to pay to get a DNS
reverse map entry for thei Green ADSL line with fixed IP.
Is that really true??
/Per Jessen, Herrliberg
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