I'm currently using the DKIM Exchange Signer application on my on-premises servers, and while it works well for most domains, I'm facing an issue with one specific subdomain. Even though the domain has been validated and the correct DKIM key is set up, the application won't add the DKIM signature to outgoing messages for this subdomain. The only message I see in the logs is a debug entry stating that there's 'No entry found in config for domain 'xxx.xxx.org.au'. All the other domains are formatted like 'xxx.xxx.xx'. Has anyone else encountered a similar problem?
2 Answers
It sounds like there might be a setting in your DKIM software that's causing the issue. Check to ensure that the DKIM record allows signing for subdomains. If it has 't=s' in it, that might block subdomain signing. Just a thought!
I’m not super familiar with the DKIM Exchange Signer, but your debugging message gives a clue. Have you double-checked your configuration files for that specific subdomain? It might be a simple typo or it could be missing from the config entirely.
Yes, I checked the XML config file and confirmed the subdomain is listed. Unfortunately, the logs don’t say much beyond that—it’s quite frustrating!
Thanks! The config does contain the subdomain, but I didn't find any options that differentiate it from the main domain. It seems like the software is not set up to handle it differently.