Hello List,
I'll have to start by breaking to golden rule of this list and not posting
postconf -n output as my question relates to a server over which I have no
control.
A customer of mine is using a smart host provided by their ISP through which
all outbound mail is delivered smtp.enta.net
On Thu, Feb 14, 2013 at 03:03:23PM +, James Day wrote:
A customer of mine is using a smart host provided by their ISP
through which all outbound mail is delivered smtp.enta.net (which
is running postfix).
This ISP's outbound relay is a submission service that is *only* suitable
for
Am 14.02.2013 16:03, schrieb James Day:
Hello List,
I'll have to start by breaking to golden rule of this list and not posting
postconf -n output as my question relates to a server over which I have no
control.
A customer of mine is using a smart host provided by their ISP through which
.
Is there a sensible way to configure postfix to allow these messages
with null sender addresses to be relayed without opening the smart
host up to exploitation?
Sending bounces is not exploitation, but the smart host (really
submission service) policy is up to the ISP. Ask them.
I
Am 14.02.2013 16:36, schrieb James Day:
Not should, MUST. Not isn't best practice, rather prohibited.
I understand and agree however in my experience you sometimes have
to fudge things so they operate with incorrectly configured systems
(against my own wishes!)
no you have not
if you
Am 14.02.2013 16:36, schrieb James Day:
.
Is there a sensible way to configure postfix to allow these messages
with null sender addresses to be relayed without opening the smart
host up to exploitation?
Sending bounces is not exploitation, but the smart host (really
submission service)
On Thu, Feb 14, 2013 at 03:36:11PM +, James Day wrote:
Is there a sensible way to configure postfix to allow these messages
with null sender addresses to be relayed without opening the smart
host up to exploitation?
Sending bounces is not exploitation, but the smart host (really
-Original Message-
From: owner-postfix-us...@postfix.org [mailto:owner-postfix-
us...@postfix.org] On Behalf Of Reindl Harald
Sent: 14 February 2013 15:43
To: postfix-users@postfix.org
Subject: Re: Null sender address in NDR's
Am 14.02.2013 16:36, schrieb James Day
--snip--
Not in this case, sending NDRs with a non-null envelope sender address is a
fundamental violation of the robustness requirements of SMTP. This goes
beyond working-around misconfiguration to flagrant violation of a basic
design requirement that prevents congestive collapse of the mail
On Thu, Feb 14, 2013 at 04:14:06PM +, James Day wrote:
Not in this case, sending NDRs with a non-null envelope sender address is a
fundamental violation of the robustness requirements of SMTP. This goes
beyond working-around misconfiguration to flagrant violation of a basic
design
Le 14/02/2013 16:03, James Day a écrit :
Hello List,
I'll have to start by breaking to golden rule of this list and not posting
postconf -n output as my question relates to a server over which I have no
control.
A customer of mine is using a smart host provided by their ISP through which
On Thu, 14 Feb 2013 15:58:34 +, Viktor Dukhovni wrote:
This has nothing to do with spam. One can just as easily send spam
as mal...@example.com as one can as . The ISP can equally easily
track it down, since the Received: headers will contain the offending
IP address.
I don't know if you
Am 15.02.2013 00:29, schrieb Rod Whitworth:
On Thu, 14 Feb 2013 15:58:34 +, Viktor Dukhovni wrote:
This has nothing to do with spam. One can just as easily send spam
as mal...@example.com as one can as . The ISP can equally easily
track it down, since the Received: headers will contain
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