421 4.3.0 ip-172-31-30-204.ec2.internal technical difficulties

Getting this error after installation, config setup and trying to run test. We rechecked the configs and other points, found no miss outs. Let me know if you all have any insights to share

Error loading data: /opt/kumomta/share/policy-extras/dkim_sign.lua:134: reading data from file ‘/opt/kumomta/etc/dkim_data.toml’: /opt/kumomta/share/policy-extras/dkim_sign.lua:169: /opt/kumomta/share/policy-extras/dkim_sign.lua:132 DkimSignConfig: unknown field ‘selector’’
2025-07-22T16:57:29.156525Z ERROR localset-0 kumo_server_common::start: problem initializing: Validation failed
Error: Initialization raised an error: Validation failed

When I tried to do the “/opt/kumomta/sbin/kumod --policy /opt/kumomta/etc/policy/init.lua --validate” command

Ok, so we know there’s an issue with your dkim_data.toml file.

Here’s the file in txt … appreciate your help in identifying any issues
dkim_file.txt (1.69 KB)

Your dkim_data.toml seems to be missing the topmost [base] block identifier.

Ok will check