Re: Sign all outgoing mail with DKIM

From: Eugene Vivdich <>
Date: Fri, 12 Jun 2015 20:50:03 +0300

Yes, I'm sure,
This can be an author's organization, an
   operational relay, or one of their agents.
Let's say I want to add DKIM to all outgoing as operational relay, mail as
I'm absolutely sure that this all my existing customers, I'm logging all the
mail for 2-5 years, I don't want to abuse them to add TXT record to their
DNS, I just want to be sure they can send email via our SMTP server. I don't
want to create a key for every of them, I just wan to generate sasl_username
and pass. Yes, It's a hosing/VPN with email services included (Like any
other ISP who let his customers to send email via his SMTP).

-----Исходное сообщение----- 
From: Rolf E. Sonneveld
Sent: Friday, June 12, 2015 8:10 PM
To: Eugene Vivdich ;
Subject: Re: Sign all outgoing mail with DKIM
On 06/12/2015 05:33 PM, Eugene Vivdich wrote:
> Hi Andreas,
> I even read in man that key could not be specified.
> But still have no luck to configure this.
> Maybe I wrote wrong issue, but to tell in a few words:
> * I have mail server for outgoing mail with postfix installed
> * I'm using dovecot-auth to authenticate users with their sasl_username 
> from MySQL DB
> * I do not have domains table in DB and I'm not care about this, so user 
> can set ANY From: address.
> * I want to sign ALL outgoing mail for all domains (I even doesn't know 
> them) with my key like the guy in my first example from the url:
are you sure that you want to take (some) responsibility for _all_ this
mail by signing it with your key? See page 1. of
> Abstract
>     DomainKeys Identified Mail (DKIM) permits a person, role, or
>     organization that owns the signing domain to claim some
>     responsibility for a message by associating the domain with the
>     message.
Received on Fri Jun 12 2015 - 17:50:14 PST

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