Re: Is postfix misconfiguration to send to wrong domain?

2013-04-11 Thread LuKreme
On Apr 11, 2013, at 15:56, "Jan P. Kessler" wrote: > do not reject mails by content filters (as said: use prequeue filters > or tag spam mails) to be clear, do not bounce emails based on content filters AFTER the SMTP transaction. You can certainly reject email based on any criteria you wish du

Re: Is postfix misconfiguration to send to wrong domain?

2013-04-11 Thread Jan P. Kessler
>> Is postscreen able to identify email as spam to prevent bouncing it? >> Is there a way to alter my postfix configuration to prevent bouncing it? > This is not a matter of 'spam detection'. You have to verify for valid > (means existing) recipients *before* you accept mail. > > Look for reject_u

Re: Is postfix misconfiguration to send to wrong domain?

2013-04-11 Thread Wietse Venema
Robert Lopez: > Is postscreen able to identify email as spam to prevent bouncing it? Is > there a way to alter my postfix configuration to prevent bouncing it? Both postscreen and a before-queue content filter block mail before it is allowed into the Postfix queue. Postfix will therefore not retu

Re: Is postfix misconfiguration to send to wrong domain?

2013-04-11 Thread Jan P. Kessler
> Is postscreen able to identify email as spam to prevent bouncing it? > Is there a way to alter my postfix configuration to prevent bouncing it? This is not a matter of 'spam detection'. You have to verify for valid (means existing) recipients *before* you accept mail. Look for reject_unlisted_

Re: Is postfix misconfiguration to send to wrong domain?

2013-04-11 Thread Robert Lopez
On Thu, Apr 11, 2013 at 2:23 PM, Noel Jones wrote: > On 4/11/2013 2:42 PM, Robert Lopez wrote: > > That was a fast response Jan. Thanks. Is the overall situation > > suggestive of any misconfiguration here? > > [please don't top-post] > > It appears you're generating a bounce for spam. Don't do

Re: Is postfix misconfiguration to send to wrong domain?

2013-04-11 Thread Noel Jones
On 4/11/2013 2:42 PM, Robert Lopez wrote: > That was a fast response Jan. Thanks. Is the overall situation > suggestive of any misconfiguration here? [please don't top-post] It appears you're generating a bounce for spam. Don't do that; the spam sender address is often forged causing your notice

Re: Is postfix misconfiguration to send to wrong domain?

2013-04-11 Thread Robert Lopez
That was a fast response Jan. Thanks. Is the overall situation suggestive of any misconfiguration here? On Thu, Apr 11, 2013 at 1:22 PM, Jan P. Kessler wrote: > Hi, > > > And these are the logfile lines for our sending of the non-delivery > notice we sent. One item in these log lines I do not

Re: Is postfix misconfiguration to send to wrong domain?

2013-04-11 Thread Jan P. Kessler
Hi, > And these are the logfile lines for our sending of the non-delivery > notice we sent. One item in these log lines I do not understand at all > is "relay=server50.appriver.com > [204.232.236.138]:25". I do not > understand where were that information is sourced.

Is postfix misconfiguration to send to wrong domain?

2013-04-11 Thread Robert Lopez
I am concerned a configuration that has been unchanged for a few years may have an error that is now showing up as a problem. I received this email that is a non-delivery notice sent to us ( postmas...@cnm.edu) that a non-delivery notice our gateway sent could not be delivered: From: postmas...@o