SMTV-759 — Final SPF processing message
SPF verification finished for domain %3 with result %4.
The smtp-proxy is configured to verify client identity according to the Sender Policy Framework (white-listing) of domain it declares to server for. This message is the final status report for the SPF processing for a domain. The first two parameters are important only for D-level messages and they represent the call depth level and the number of DNS queries to reach the limit of 10 given by the RFC.
The W-level message reports an error in processing, more detailed information can be found in preceding log messages, this message logs the domain name and result used in DELIVERY-ACL searching.
The N-level message is logged to ease a mail processing tracking.