On Fri, Nov 03, 2000 at 02:57:21PM +0100, Peter Palfrader wrote:
> mynetworks=127.0.0.1/8 does instruct postfix to accept mails from 127/8. This
> includes localhost. This has nothing to do at all with From and To addresses.
Yes, I know. At first I tried to configure my machine to not relay for
lo
On Fri, Nov 03, 2000 at 02:57:21PM +0100, Peter Palfrader wrote:
> mynetworks=127.0.0.1/8 does instruct postfix to accept mails from 127/8. This
> includes localhost. This has nothing to do at all with From and To addresses.
Yes, I know. At first I tried to configure my machine to not relay for
l
Hi Michael!
On Fri, 03 Nov 2000, Michael Meskes wrote:
> On Thu, Nov 02, 2000 at 01:17:21PM +0100, Peter Palfrader wrote:
> > It is. For a (not so) small set of hosts. Assuming your box is 62.1.2.3 you
> > will be an open relay for the entire _class_A_ net 62.
>
> Unfortunately not just for thi
Hi Michael!
On Fri, 03 Nov 2000, Michael Meskes wrote:
> On Thu, Nov 02, 2000 at 01:17:21PM +0100, Peter Palfrader wrote:
> > It is. For a (not so) small set of hosts. Assuming your box is 62.1.2.3 you
> > will be an open relay for the entire _class_A_ net 62.
>
> Unfortunately not just for th
On Fri, Nov 03, 2000 at 12:59:31AM -0900, Ethan Benson wrote:
> no, machines in your network are allowed to relay, if i were to
> connect to your port 25 (which i won't) and try the same thing it
> would refuse to accept it.
Yes, I realized that AFTER sending my mail. I thought I had configured it
Please disregard my last two mails. While testing postfix I misconfigured it
and that's why it was relaying. I just noticed this too late.
Sorry.
Michael
--
Michael Meskes
Michael@Fam-Meskes.De
Go SF 49ers! Go Rhein Fire!
Use Debian GNU/Linux! Use PostgreSQL!
On Fri, Nov 03, 2000 at 10:22:32AM +0100, Michael Meskes wrote:
> On Thu, Nov 02, 2000 at 10:09:10AM -0600, An Thi-Nguyen Le wrote:
> > set up myself that has a default potato debian install, with postfix
> > (default as well).
>
> Well I do run woody, but:
>
> [EMAIL PROTECTED]:~$ telnet localh
On Thu, Nov 02, 2000 at 01:17:21PM +0100, Peter Palfrader wrote:
> It is. For a (not so) small set of hosts. Assuming your box is 62.1.2.3 you
> will be an open relay for the entire _class_A_ net 62.
Unfortunately not just for this.
> If you do not set mynetworks postfix guesses it from the inte
On Thu, Nov 02, 2000 at 10:09:10AM -0600, An Thi-Nguyen Le wrote:
> set up myself that has a default potato debian install, with postfix
> (default as well).
Well I do run woody, but:
[EMAIL PROTECTED]:~$ telnet localhost 25
Trying 127.0.0.1...
Connected to localhost.
Escape character is '^]'.
2
On Fri, Nov 03, 2000 at 12:59:31AM -0900, Ethan Benson wrote:
> no, machines in your network are allowed to relay, if i were to
> connect to your port 25 (which i won't) and try the same thing it
> would refuse to accept it.
Yes, I realized that AFTER sending my mail. I thought I had configured i
Please disregard my last two mails. While testing postfix I misconfigured it
and that's why it was relaying. I just noticed this too late.
Sorry.
Michael
--
Michael Meskes
[EMAIL PROTECTED]
Go SF 49ers! Go Rhein Fire!
Use Debian GNU/Linux! Use PostgreSQL!
--
To UNSUBSCRIBE, email to [EMAIL
On Fri, Nov 03, 2000 at 10:22:32AM +0100, Michael Meskes wrote:
> On Thu, Nov 02, 2000 at 10:09:10AM -0600, An Thi-Nguyen Le wrote:
> > set up myself that has a default potato debian install, with postfix
> > (default as well).
>
> Well I do run woody, but:
>
> mme@feivel:~$ telnet localhost 25
On Thu, Nov 02, 2000 at 01:17:21PM +0100, Peter Palfrader wrote:
> It is. For a (not so) small set of hosts. Assuming your box is 62.1.2.3 you
> will be an open relay for the entire _class_A_ net 62.
Unfortunately not just for this.
> If you do not set mynetworks postfix guesses it from the int
On Thu, Nov 02, 2000 at 10:09:10AM -0600, An Thi-Nguyen Le wrote:
> set up myself that has a default potato debian install, with postfix
> (default as well).
Well I do run woody, but:
mme@feivel:~$ telnet localhost 25
Trying 127.0.0.1...
Connected to localhost.
Escape character is '^]'.
220 fei
On Thu, Nov 02, 2000 at 02:24:36AM -0900, Ethan Benson wrote:
>
> > mail-abuse.org just test relaying...and postfix fails the test, but doesn't
>
> it fails? since when? or rather what are you defining as failure? in
> my tests it refused to relay each and every attempt from them.
This migh
On Thu, Nov 02, 2000 at 11:49:35AM +0100, Ingemar Fällman typed:
} Try this :)
}
} telnet some.other.host.running.postfix 25
} HELO my.hostname
} MAIL FROM:<[EMAIL PROTECTED]>
} RCPT TO:<[EMAIL PROTECTED]>
} DATA
} Testing testing
} .
} QUIT
Hostnames have been changed to protect the innocent (al
On Thu, Nov 02, 2000 at 02:24:36AM -0900, Ethan Benson wrote:
>
> > mail-abuse.org just test relaying...and postfix fails the test, but doesn't
>
> it fails? since when? or rather what are you defining as failure? in
> my tests it refused to relay each and every attempt from them.
This mig
On Thu, Nov 02, 2000 at 11:49:35AM +0100, Ingemar Fällman typed:
} Try this :)
}
} telnet some.other.host.running.postfix 25
} HELO my.hostname
} MAIL FROM:<[EMAIL PROTECTED]>
} RCPT TO:<[EMAIL PROTECTED]>
} DATA
} Testing testing
} .
} QUIT
Hostnames have been changed to protect the innocent (a
Hi Ethan!
On Thu, 02 Nov 2000, Ethan Benson wrote:
> > If you do not set mynetworks postfix guesses it from the interfaces and
> > allows
> > all hosts on the classful subnets of those interfaces to relay through you.
>
> ah! i see didn't think of that one... so you need to specify
> mynetworks
On Thu, Nov 02, 2000 at 01:17:21PM +0100, Peter Palfrader wrote:
> Hi!
>
> On Thu, 02 Nov 2000, Borut Mrak wrote:
>
> > On Thu, Nov 02, 2000 at 02:24:36AM -0900, Ethan Benson wrote:
> > > so my question now is postfix a open relay by default or not?
> >
> > No.
>
> It is. For a (not so) smal
Hi!
On Thu, 02 Nov 2000, Borut Mrak wrote:
> On Thu, Nov 02, 2000 at 02:24:36AM -0900, Ethan Benson wrote:
> > so my question now is postfix a open relay by default or not?
>
> No.
It is. For a (not so) small set of hosts. Assuming your box is 62.1.2.3 you
will be an open relay for the entir
> So, Postfix appears to be an open relay to the stupid mail-abuse.org
> test, because the test does not confirm the relay when it receives its
> message back, but right after it gives it away.
This is also the case for Exim, I believe, with a standard
configuration (percent_hack_domains commented
On Thu, Nov 02, 2000 at 02:24:36AM -0900, Ethan Benson wrote:
> > mail-abuse.org just test relaying...and postfix fails the test, but doesn't
>
> it fails? since when? or rather what are you defining as failure? in
> my tests it refused to relay each and every attempt from them.
The default (
On Thu, Nov 02, 2000 at 12:05:00PM +0100, Borut Mrak wrote:
>
> Hmm...wise decision ;-]
indeed...
> mail-abuse.org just test relaying...and postfix fails the test, but doesn't
it fails? since when? or rather what are you defining as failure? in
my tests it refused to relay each and every att
On Thu, Nov 02, 2000 at 01:58:52AM -0900, Ethan Benson wrote:
> > MAIL FROM:<[EMAIL PROTECTED]>
> > RCPT TO:<[EMAIL PROTECTED]>
>
> well i don't know anyone running postfix who i can ask to test this
> with... im certainly not going to go try it without asking ! bad karma
> ;-)
Hmm...wise decisio
On Thu, Nov 02, 2000 at 01:43:11AM -0900, Ethan Benson wrote:
>
> did you run a test to see if this was really the case? such as telnet
> mail-abuse.org
>
I didn't find this test very accurate.
Look this log :
=
$ telnet mail-abuse.org
Trying 2
Hi Ethan!
On Thu, 02 Nov 2000, Ethan Benson wrote:
> > If you do not set mynetworks postfix guesses it from the interfaces and allows
> > all hosts on the classful subnets of those interfaces to relay through you.
>
> ah! i see didn't think of that one... so you need to specify
> mynetworks wit
On Thu, Nov 02, 2000 at 11:49:35AM +0100, Ingemar Fällman wrote:
> Try this :)
>
> telnet some.other.host.running.postfix 25
> HELO my.hostname
> MAIL FROM:<[EMAIL PROTECTED]>
> RCPT TO:<[EMAIL PROTECTED]>
> DATA
> Testing testing
> .
> QUIT
well i don't know anyone running postfix who i can ask
Try this :)
telnet some.other.host.running.postfix 25
HELO my.hostname
MAIL FROM:<[EMAIL PROTECTED]>
RCPT TO:<[EMAIL PROTECTED]>
DATA
Testing testing
.
QUIT
Ethan Benson wrote:
>
> On Thu, Nov 02, 2000 at 10:42:38AM +0100, Ingemar Fällman wrote:
> > Hi
> >
> > When i was looking trough my logs t
On Thu, Nov 02, 2000 at 10:42:38AM +0100, Ingemar Fällman wrote:
> Hi
>
> When i was looking trough my logs tody i found that my host had been
> used
> as a relay host... I changed from sendmail to postfix because everyone
> told
> me that postfix was more secure.
>
> When looking at the default
On Thu, Nov 02, 2000 at 01:17:21PM +0100, Peter Palfrader wrote:
> Hi!
>
> On Thu, 02 Nov 2000, Borut Mrak wrote:
>
> > On Thu, Nov 02, 2000 at 02:24:36AM -0900, Ethan Benson wrote:
> > > so my question now is postfix a open relay by default or not?
> >
> > No.
>
> It is. For a (not so) sma
Hi!
On Thu, 02 Nov 2000, Borut Mrak wrote:
> On Thu, Nov 02, 2000 at 02:24:36AM -0900, Ethan Benson wrote:
> > so my question now is postfix a open relay by default or not?
>
> No.
It is. For a (not so) small set of hosts. Assuming your box is 62.1.2.3 you
will be an open relay for the enti
> So, Postfix appears to be an open relay to the stupid mail-abuse.org
> test, because the test does not confirm the relay when it receives its
> message back, but right after it gives it away.
This is also the case for Exim, I believe, with a standard
configuration (percent_hack_domains commente
Hi
When i was looking trough my logs tody i found that my host had been
used
as a relay host... I changed from sendmail to postfix because everyone
told
me that postfix was more secure.
When looking at the default configurationfiles installed by debian there
was
nothing that prevents unauthorized
On Thu, Nov 02, 2000 at 02:24:36AM -0900, Ethan Benson wrote:
> > mail-abuse.org just test relaying...and postfix fails the test, but doesn't
>
> it fails? since when? or rather what are you defining as failure? in
> my tests it refused to relay each and every attempt from them.
The default
On Thu, Nov 02, 2000 at 12:05:00PM +0100, Borut Mrak wrote:
>
> Hmm...wise decision ;-]
indeed...
> mail-abuse.org just test relaying...and postfix fails the test, but doesn't
it fails? since when? or rather what are you defining as failure? in
my tests it refused to relay each and every at
On Thu, Nov 02, 2000 at 01:58:52AM -0900, Ethan Benson wrote:
> > MAIL FROM:<[EMAIL PROTECTED]>
> > RCPT TO:<[EMAIL PROTECTED]>
>
> well i don't know anyone running postfix who i can ask to test this
> with... im certainly not going to go try it without asking ! bad karma
> ;-)
Hmm...wise decisi
On Thu, Nov 02, 2000 at 01:43:11AM -0900, Ethan Benson wrote:
>
> did you run a test to see if this was really the case? such as telnet mail-abuse.org
>
I didn't find this test very accurate.
Look this log :
=
$ telnet mail-abuse.org
Trying 204
On Thu, Nov 02, 2000 at 11:49:35AM +0100, Ingemar Fällman wrote:
> Try this :)
>
> telnet some.other.host.running.postfix 25
> HELO my.hostname
> MAIL FROM:<[EMAIL PROTECTED]>
> RCPT TO:<[EMAIL PROTECTED]>
> DATA
> Testing testing
> .
> QUIT
well i don't know anyone running postfix who i can ask
Try this :)
telnet some.other.host.running.postfix 25
HELO my.hostname
MAIL FROM:<[EMAIL PROTECTED]>
RCPT TO:<[EMAIL PROTECTED]>
DATA
Testing testing
.
QUIT
Ethan Benson wrote:
>
> On Thu, Nov 02, 2000 at 10:42:38AM +0100, Ingemar Fällman wrote:
> > Hi
> >
> > When i was looking trough my logs
On Thu, Nov 02, 2000 at 10:42:38AM +0100, Ingemar Fällman wrote:
> Hi
>
> When i was looking trough my logs tody i found that my host had been
> used
> as a relay host... I changed from sendmail to postfix because everyone
> told
> me that postfix was more secure.
>
> When looking at the default
Hi
When i was looking trough my logs tody i found that my host had been
used
as a relay host... I changed from sendmail to postfix because everyone
told
me that postfix was more secure.
When looking at the default configurationfiles installed by debian there
was
nothing that prevents unauthorize
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