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headers

Specify a list of message headers to include in the logs. The default is empty.

kumo.configure_local_logs {
  -- ..
  headers = { 'Subject' },
}

Since: Version 2023.12.28-63cde9c7

The functionality described in this outlined box requires version 2023.12.28-63cde9c7 of KumoMTA, or a more recent version.

Header names can now use simple wildcard suffixes; if the last character of the header name is * then it will match any string with that prefix. For example "X-*" will match any header names that start with "X-".