I am working on a spam filter. I want both incoming and outgoing messages to
go through the filter, not because the outgoing messages need to be filtered,
but because I want the filter to know who my authorized users have sent
messages to because that is a very reliable indicator of non-spam. M
On Jan 19, 2011, at 12:06 PM, John Adams wrote:
> Am 19.01.2011 21:03, schrieb Ron Garret:
>> I am working on a spam filter. I want both incoming and outgoing messages
>> to go through the filter, not because the outgoing messages need to be
>> filtered, but because I wa
I'm trying to set up a relay host with authentication according to these
instructions:
http://anothersysadmin.wordpress.com/2009/02/06/postfix-as-relay-to-a-smtp-requiring-authentication/
but it's not working. I know my SMTP server is set up properly because I can
send mail using various other
On Jul 11, 2011, at 9:31 PM, Stan Hoeppner wrote:
> On 7/11/2011 8:12 PM, Ron Garret wrote:
>> I'm trying to set up a relay host with authentication according to these
>> instructions:
>>
>> http://anothersysadmin.wordpress.com/2009/02/06/postfix-as-relay-to
On Jul 11, 2011, at 11:03 PM, Jeroen Geilman wrote:
> On 2011-07-12 07:12, Ron Garret wrote:
>> On Jul 11, 2011, at 9:31 PM, Stan Hoeppner wrote:
>>
>>> On 7/11/2011 8:12 PM, Ron Garret wrote:
>>>> I'm trying to set up a relay host with authenticat
On Jul 11, 2011, at 11:07 PM, Stan Hoeppner wrote:
> On 7/12/2011 12:12 AM, Ron Garret wrote:
>>
>> On Jul 11, 2011, at 9:31 PM, Stan Hoeppner wrote:
>>
>>> On 7/11/2011 8:12 PM, Ron Garret wrote:
>>>> I'm trying to set up a relay host with authe
On Jul 11, 2011, at 11:17 PM, Mike Morris wrote:
> On 07/11/2011 10:12 PM, Ron Garret wrote:
>>
>> On Jul 11, 2011, at 9:31 PM, Stan Hoeppner wrote:
>>
>>> On 7/11/2011 8:12 PM, Ron Garret wrote:
>>>> I'm trying to set up a relay host with authe
On Jul 12, 2011, at 12:13 AM, Stan Hoeppner wrote:
> On 7/12/2011 1:37 AM, Ron Garret wrote:
>>
>> On Jul 11, 2011, at 11:17 PM, Mike Morris wrote:
>
>>> Configure smtp_tls_security_level and/or smtp_tls_policy_maps, using at
>>> least a setting of '
On Jul 11, 2011, at 11:37 PM, Ron Garret wrote:
>
> On Jul 11, 2011, at 11:17 PM, Mike Morris wrote:
>
>> On 07/11/2011 10:12 PM, Ron Garret wrote:
>>>
>>> On Jul 11, 2011, at 9:31 PM, Stan Hoeppner wrote:
>>>
>>>> On 7/11/2011 8:12 PM
I have recently come under a backscatter spam attack from one specific domain.
This domain has blacklisted my server’s IP address, and so bounce replies sent
to this domain are piling up in my mail queue and I have to go through
periodically and manually delete them. I don’t want to disable bo
On Jul 11, 2021, at 9:58 AM, Wietse Venema wrote:
> Ron Garret:
>> I have recently come under a backscatter spam attack from one
>> specific domain. This domain has blacklisted my server?s IP
>> address, and so bounce replies sent to this domain are piling up
>> in
On Jul 11, 2021, at 10:12 AM, Wietse Venema wrote:
> Ron Garret:
> [ Charset windows-1252 converted... ]
>>
>> On Jul 11, 2021, at 9:58 AM, Wietse Venema wrote:
>>
>>> Ron Garret:
>>>> I have recently come under a backscatter spam attack fr
On Jul 11, 2021, at 9:58 AM, Wietse Venema wrote:
>>> Ron Garret:
>>>> I have recently come under a backscatter spam attack from one
>>>> specific domain. This domain has blacklisted my server?s IP
>>>> address, and so bounce replies sent to this domain are p
On Jul 11, 2021, at 12:22 PM, Matus UHLAR - fantomas wrote:
>
>> The problem is that a rejected recipient produces a mailer-daemon reply.
>
> only if you accept mail for such recipient.
Ah. That may be my problem then. I’m using Dovecot via LMTP for local
delivery. I thought that postfix
PM, Bill Cole
wrote:
> On 2021-07-11 at 15:46:45 UTC-0400 (Sun, 11 Jul 2021 12:46:45 -0700)
> Ron Garret
> is rumored to have said:
>
>> On Jul 11, 2021, at 12:22 PM, Matus UHLAR - fantomas
>> wrote:
>>
>>>
>>>> The problem is that a rejec
For the record:
On Jul 11, 2021, at 1:06 PM, Claus R. Wickinghoff wrote:
> I think this can be achieved with reject_unverified_recipient to query
> dovecot via lmtp but I've no practical experience with this. Probably you've
> to do some googling...
That turned out to be the Right Answer. I
th this. Probably
>>> you've to do some googling...
>
> On 12.07.21 10:19, Ron Garret wrote:
>> That turned out to be the Right Answer. I simply added
>> reject_unverified_recipient to smtpd_recipient_restrictions and that fixed
>> the problem.
>>
Is there an easy way to tell postfix to send a copy of every message it
receives to a “shadow server” in a way that preserves the SMTP envelope? I’m
trying to tune a spam filter on actual data, but I don’t want to do it on my
production server because the tuning is likely to break things.
Than
On Aug 18, 2021, at 11:55 AM, Viktor Dukhovni
wrote:
> If you want different processing for inbound and outbound mail,
> use separate Postfix instances configured appropriately to the
> task at hand.
There is a useful distinction to be made between mail that is injected into the
system by an
On Aug 18, 2021, at 12:13 PM, Viktor Dukhovni
wrote:
>> On 18 Aug 2021, at 3:07 pm, Ron Garret wrote:
>>
>>> If you want different processing for inbound and outbound mail,
>>> use separate Postfix instances configured appropriately to the
>>>
Hello (not helo :-)
I am working on a spam filter and so I find myself spending a lot more quality
time with mail logs than I used to. One of the things I have noticed is that I
will get a lot of connections that send a HELO command and then disconnect.
Sometimes I get this repeated several t
I ran into the sqlite locked database problem discussed in these threads:
https://marc.info/?l=postfix-users&m=160096626120296&w=2
https://marc.info/?l=postfix-users&m=151561295721906&w=2
The problem occurs (AFAICT) because the database file was shared with a spam
filter which was writing to th
On Feb 22, 2021, at 4:56 PM, Ron Garret (gmail) wrote:
>
> On Feb 22, 2021, at 2:57 PM, Wietse Venema wrote:
>
>> Ron Garret:
>> [ Charset windows-1252 converted... ]
>>> I ran into the sqlite locked database problem discussed in these threads:
>>>
&
On Feb 23, 2021, at 10:19 AM, Wietse Venema wrote:
> Ron Garret:
>>>> Isn't SQLite supposed to deal with concurrent access?
>>>> https://sqlite.org/lockingv3.html
>>>
>>> Yes, it does, but the way it ?deals? with it is to throw an error
&
On Feb 23, 2021, at 11:41 AM, Richard Damon wrote:
> On 2/23/21 2:18 PM, Wietse Venema wrote:
>> Ron Garret:
>>>> If we take this route, then there needs to be a new field in the
>>>> Postfix sqlite config file that controls the time limit.
>>> No
Hello,
What is the usual way to start a milter process? Can postfix be configured to
spawn it automatically, or does the milter have to be set up as a separate
service? If the former, how do you do it?
Thanks,
rg
On Jan 31, 2016, at 1:28 AM, Robert Schetterer wrote:
> Am 31.01.2016 um 09:56 schrieb Ron Garret:
>> Hello,
>>
>> What is the usual way to start a milter process? Can postfix be configured
>> to spawn it automatically, or does the milter have to be set up as a
&
OK, that’s exactly what I needed to know. Thanks!
On Jan 31, 2016, at 9:16 AM, Steve Jenkins wrote:
> On Sun, Jan 31, 2016 at 9:04 AM, Ron Garret wrote:
> OK, but is there any way to get Postfix to restart a milter if it goes down?
> By default, if a milter goes down, it takes pos
I am running postfix on the same machine as my IMAP server, but this is a
security risk because having two different services on the same machine
increases the attack surface. My IMAP server doesn't need to be publicly
visible, so I would like to move that service to a separate machine, and hav
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