System administrators typically manage SPF records using standard tools like nslookup.exe or dig , not a standalone spf.exe file.
While "spf.exe" might sound like a utility related to (SPF) email authentication records, it is actually a malicious binary associated with cyberattacks and malware analysis scenarios. Overview of spf.exe
Are you seeing this file on a or within a corporate network ?
How to setup a SPF record to prevent spam and spear phishing
