Re: Configuring smtp_tls_cert_file for specific domain

2020-03-27 Thread Viktor Dukhovni
On Fri, Mar 27, 2020 at 07:25:19PM +0530, sandeep pawar wrote: > I am using postfix to send mails to external world. One of the external > recipient mentioned the requirement to setup MTLS, where they want a > publicly signed client side certificate to establish TLS. I want to present > client

Re: Postfix Sign smtp from with DKIM

2020-03-27 Thread Wietse Venema
Ralph Seichter: > * Matus UHLAR: > > > On 27.03.20 10:46, SysAdmin EM wrote: > > > Is it possible to sign smtp from with DKIM? I clarify that > > > I am not talking about the header from. > > > > no, only headers can be signed. > > Message headers and body, actually. You are of course right in

Re: Postfix Sign smtp from with DKIM

2020-03-27 Thread Ralph Seichter
* Matus UHLAR: > On 27.03.20 10:46, SysAdmin EM wrote: > > Is it possible to sign smtp from with DKIM? I clarify that > > I am not talking about the header from. > > no, only headers can be signed. Message headers and body, actually. You are of course right in that the envelope data (SMTP

Re: Postfix Sign smtp from with DKIM

2020-03-27 Thread Matus UHLAR - fantomas
On 27.03.20 10:46, SysAdmin EM wrote: Is it possible to sign smtp from with DKIM? I clarify that I am not talking about the header from. no, only headers can be signed. Also, that would make forwarding impossible. Don't try to do that. -- Matus UHLAR - fantomas, uh...@fantomas.sk ;

Re: Configuring smtp_tls_cert_file for specific domain

2020-03-27 Thread Wietse Venema
sandeep pawar: > Hi, > > I am using postfix to send mails to external world. One of the external > recipient mentioned the requirement to setup MTLS, where they want a > publicly signed client side certificate to establish TLS. I want to present > client side certificate only to the required

Configuring smtp_tls_cert_file for specific domain

2020-03-27 Thread sandeep pawar
Hi, I am using postfix to send mails to external world. One of the external recipient mentioned the requirement to setup MTLS, where they want a publicly signed client side certificate to establish TLS. I want to present client side certificate only to the required domain as it can cause issues

Postfix Sign smtp from with DKIM

2020-03-27 Thread SysAdmin EM
Is it possible to sign smtp from with DKIM? I clarify that I am not talking about the header from. I have installed opendkim and can only sign the header from. What I am seeing is that some emails that I receive in the different Gmail tabs, for example Promotions, have a double dkim key: