Embodiments of the present disclosure provide a first set of methods, computer-readable media, and system configured for: receiving a configuration for a domain name system (DNS) to log all queries; publishing a customized sender policy framework (SPF) policy to the DNS, the customized SPF policy comprising a macro-endowed mechanism; logging a plurality of received SPF customized queries; accessing a log comprising the plurality of received SPF customized queries; extracting data from each of the received SPF customized queries, the data being populated by the macro mechanism associated with the SPF customized query; populating a datastore with extracted data comprising at least one of the following: a username, a IP address, and a domain, as extracted from each received SPF customized query; and providing, based on the extracted data, an indication of outbound emails sent from the domain. In various embodiments, email authorizations and restrictions may be based thereon.