[Rspamd-Users] dkim_signing: final DKIM domain cuts off subsubdomain

[Dauser Martin Johannes]

Hi!

I don't get DKIM signing because module dkim_signing thinks it needs to cut off the subsubdomain:

Apr 11 16:34:11 brieftaube rspamd[458053]: <42172b>; dkim_signing; lua_dkim_tools.lua:183: user is authenticated
Apr 11 16:34:11 brieftaube rspamd[458053]: <42172b>; dkim_signing; lua_dkim_tools.lua:405: use domain(envelope) for signature: cs.sbg.ac.at
Apr 11 16:34:11 brieftaube rspamd[458053]: <42172b>; dkim_signing; lua_dkim_tools.lua:425: final DKIM domain: sbg.ac.at

After that it tries to find a fitting key file, which doesn't exist as this is the domain of another mail server.

Any idea why this happens?
Best regards
Dauser Martin

##################
dkim_signing.conf
##################
enabled = true
try_fallback = true;
path = "/var/lib/rspamd/dkim/$domain.$selector.key";
selector_map = "/etc/rspamd/local.d/dkim_selectors.map";
 # content of dkim_selectors.map:
 # <domain>      <selector>
 # cs.sbg.ac.at  dkim20230202
path_map = "/etc/rspamd/local.d/dkim_paths.map";
 # content of dkim_path.map:
 # <domain>      <path>
 # cs.sbg.ac.at  /var/lib/rspamd/dkim/cs.sbg.ac.at.$selector.key


sign_networks [
    "141.201.2.0/24",
]
sign_local = true;
sign_authenticated = true;

use_domain = "envelope";
use_domain_sign_networks = "envelope";
use_domain_sign_local = "envelope";

allow_username_mismatch = true;
allow_hdrfrom_mismatch = true;



sign_headers = (o)from:(x)sender:(o)reply-to:(x)date:(x)message-
id:(o)to:(o)cc:(x)mime-version:(x)content-type:(x)content-transfer-
encoding:resent-to:resent-cc:resent-from:resent-sender:resent-message-
id:(x)in->