Re: [exim] How to use DKIM with Ed25519 - Dual DKIM signing

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Author: Evgeniy Berdnikov
Date:  
To: exim-users
Subject: Re: [exim] How to use DKIM with Ed25519 - Dual DKIM signing
On Thu, Oct 14, 2021 at 03:24:56PM +0300, Odhiambo Washington via Exim-users wrote:
> 1. I have 2 private keys - dkim.priv.key and dkim_ed25519.priv.key
> 2. I have published a DNS record for key1._domainkey.example.com for the
> RSA, and key2._domainkey.example.com for the ED25519 keys respectively
>
> Any easier way to integrate that into my transport?


Documentation states:

|  dkim_selector     Use: smtp     Type: string list†     Default: unset

|
| This sets the key selector string. After expansion, which can use
| $dkim_domain, this can be a list. Each element in turn is put in the
| expansion variable $dkim_selector which may be used in the
| dkim_private_key option along with $dkim_domain.


Does the assignment dkim_selector="key1:key2" work?
--
Eugene Berdnikov