LOG ALL THE THINGS!!!
On January 3rd, KumoMTA published its first release of the year. This first release of 2024 includes a community-requested update to logging that allows an operator to log header values by wildcard. This is kind of a massive deal if you are a MailOps engineer responsible for logging as much relevant data as possible from email deliveries.
The feature is easy to implement but allows for much easier administration through configuration changes. For instance, if you have relevant headers like MKT-AccountID and MKT-region, you could simply set the logging directive to headers = { 'MKT-*' }, and it will capture all header data with that prefix. Now your marketing team can add any headers they like with the 'MKT-' prefix and MailOps does not have to rewrite the config to accommodate tracking.
Brilliant, hey?
kumo.configure_local_logs {
-- ..
headers = { 'Subject', 'X-*', 'mkt-*' },
}
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