Re: Postfix with DKIM for a mail relay

2019-11-07 Thread Ralph Seichter
* Dominic Raferd: > I have to disagree with the last two sentences. In the real world > almost no-one uses mailing lists - we are a self-selected group. I have to disagree with the last two sentences. Looking at the traffic we process, our customers very much use mailing lists in the real world.

Re: Postfix with DKIM for a mail relay

2019-11-07 Thread Jaroslaw Rafa
Dnia 7.11.2019 o godz. 18:09:23 Ignacio García pisze: > I don't know anybody out of the IT world subscribed > to mailing lists Probably depends a lot on local conditions, because I know many. There are very few IT people on non-IT related lists I'm subscribed to. -- Regards, Jaroslaw Rafa

Re: Postfix with DKIM for a mail relay

2019-11-07 Thread Ignacio García
El 07/11/2019 a las 17:23, Jaroslaw Rafa escribió: Dnia 7.11.2019 o godz. 16:16:51 Dominic Raferd pisze: I have to disagree with the last two sentences. In the real world almost no-one uses mailing lists - we are a self-selected group. People who are members of any kind of organization, like

Re: Postfix with DKIM for a mail relay

2019-11-07 Thread Jaroslaw Rafa
Dnia 7.11.2019 o godz. 16:16:51 Dominic Raferd pisze: > > I have to disagree with the last two sentences. In the real world > almost no-one uses mailing lists - we are a self-selected group. People who are members of any kind of organization, like a bicycle club, a charity organization, a

Re: Postfix with DKIM for a mail relay

2019-11-07 Thread Dominic Raferd
n 07/11/2019 01:03, Richard James Salts wrote: On Thursday, 7 November 2019 4:23:20 AM AEDT Dominic Raferd wrote: ... The main problem with DMARC is that some mailing lists (not this one, I believe) mess it up, so I would suggest not to use it with p=quarantine or p=reject on any domain where

Re: Postfix with DKIM for a mail relay

2019-11-07 Thread Roberto Carna
Ok Wietse, I understand. Thanks a lot!!! El jue., 7 nov. 2019 a las 11:06, Wietse Venema () escribió: > Richard James Salts: > > On Thursday, 7 November 2019 4:23:20 AM AEDT Dominic Raferd wrote: > > > ... > > > The main problem with DMARC is that some mailing lists (not this one, > > > I

Re: Postfix with DKIM for a mail relay

2019-11-07 Thread Wietse Venema
Richard James Salts: > On Thursday, 7 November 2019 4:23:20 AM AEDT Dominic Raferd wrote: > > ... > > The main problem with DMARC is that some mailing lists (not this one, > > I believe) mess it up, so I would suggest not to use it with > > p=quarantine or p=reject on any domain where users are

Re: Postfix with DKIM for a mail relay

2019-11-07 Thread Roberto Carna
Thanks a lo to all of you. Regards !!! El mié., 6 nov. 2019 a las 22:05, Richard James Salts (< post...@spectralmud.org>) escribió: > On Thursday, 7 November 2019 4:23:20 AM AEDT Dominic Raferd wrote: > > ... > > The main problem with DMARC is that some mailing lists (not this one, > > I

Re: Postfix with DKIM for a mail relay

2019-11-06 Thread Benny Pedersen
Richard James Salts skrev den 2019-11-07 02:03: email address in their outgoing mail you're going to have some collateral damage from p=reject. sure dmarc breaks dkim :(

Re: Postfix with DKIM for a mail relay

2019-11-06 Thread Richard James Salts
On Thursday, 7 November 2019 4:23:20 AM AEDT Dominic Raferd wrote: > ... > The main problem with DMARC is that some mailing lists (not this one, > I believe) mess it up, so I would suggest not to use it with > p=quarantine or p=reject on any domain where users are likely to post > to mailing

Re: Postfix with DKIM for a mail relay

2019-11-06 Thread Benny Pedersen
Roberto Carna skrev den 2019-11-06 17:11: Is it possible to implement DKIM only in my Postfix server for all the outgoing @example.com [1] mails ??? Or doing this I affect the outgoing mails from my Exchange server because it sends @example.com [1] mails withouth DKIM mechanism ??? is this

Re: Postfix with DKIM for a mail relay

2019-11-06 Thread Dominic Raferd
On Wed, 6 Nov 2019 at 17:04, Roberto Carna wrote: > El mié., 6 nov. 2019 a las 13:48, Dominic Raferd () > escribió: >> >> On Wed, 6 Nov 2019 at 16:12, Roberto Carna wrote: >> > My cooperative mail server is an Exchange which does not implement DKIM at >> > all. >> > But also I have a Postfix

Re: Postfix with DKIM for a mail relay

2019-11-06 Thread Roberto Carna
Dear Dominic, thanks for your interesting comments. I administrate the Postfix mail server, not the Exchange, so I can't do anything to implement DKIM in the second one. In my Postfix mail server I've just have SPF implemented for outgoing mails.Maybe it's better to add DKIM + DMARC in place

Re: Postfix with DKIM for a mail relay

2019-11-06 Thread Dominic Raferd
On Wed, 6 Nov 2019 at 16:12, Roberto Carna wrote: > My cooperative mail server is an Exchange which does not implement DKIM at > all. > But also I have a Postfix mail relay for the "example.com" domain. > Is it possible to implement DKIM only in my Postfix server for all the > outgoing

Postfix with DKIM for a mail relay

2019-11-06 Thread Roberto Carna
Dear, my domain is "example.com". My cooperative mail server is an Exchange which does not implement DKIM at all. But also I have a Postfix mail relay for the "example.com" domain. Is it possible to implement DKIM only in my Postfix server for all the outgoing @example.com mails ??? Or doing