Hello, I'm running a dockerized Mailcow up-to-date (2024-04) which does not DKIM sign outgoing emails. Watching the Rspamd logs, I can see the error : ``` mailcowdockerized-rspamd-mailcow-1 | 2024-06-18 12:37:32 #112(normal) ; task; dkim_module_load_key_format: cannot load dkim key : invalid key type to load: 4 ``` What can be wring with my DKIM private keys ? Where are they stored ? Where shall I set `$SHOW_DKIM_PRIV_KEYS` in my dockerized instance to see them ? Thanks for help

LMGTFY: https://github.com/mailcow/mailcow-dockerized/issues/3578

Rspamd - no DKIM signature - cannot load dkim key : invalid key type to load: 4

franck-grenier

Hello,
I’m running a dockerized Mailcow up-to-date (2024-04) which does not DKIM sign outgoing emails.

Watching the Rspamd logs, I can see the error :

mailcowdockerized-rspamd-mailcow-1 | 2024-06-18 12:37:32 #112(normal) <e02fac>; task; dkim_module_load_key_format: cannot load dkim key : invalid key type to load: 4

What can be wring with my DKIM private keys ? Where are they stored ? Where shall I set $SHOW_DKIM_PRIV_KEYS in my dockerized instance to see them ?

Thanks for help

esackbauer

LMGTFY:
mailcow/mailcow-dockerized3578

franck-grenier

Ok thanks.

After inspecting the key pairs, I can see that the private key is empty. That’s my issue.

I also confirm that key pairs are duplicated through the API on my instance. This issue you mention is dated 2020.
Can you confirm that it’s fixed today 2024 (my instance is up-to-date 2024-04) ?

Will Rspamd DKIM sign my emails even if I duplicate DKIM pairs ?

franck-grenier

With release 2024-04, I confirm DKIM signing works with duplicated DKIM key pairs.