It's been about 15 hours so far, I’ve seen legitimate emails from American Express (credit limit increase notification), Amazon (purchases and subscription notifications), Duolingo, Temu order updates, Booking.com offers, several known clothing Company marketing emails, various legit emails from WorkDay, and Realtor listing change alerts incorrectly flagged as spam by SpamFoo.

It has however correctly identified several phishing attempts and is effectively catching a large volume of spam, particularly from low-quality TLDs such as .space and similar domains.

Resource usage shows the spamfoo-client.exe process consuming approximately 270MB of RAM and averaging 1–3% CPU usage, with periodic spikes up to 47%. The initial startup exhibited a higher CPU spike, I assume data loading and initialization.

Network activity is minimal and primarily consists of DNS queries to internal DNS servers, along with connections to 192.68.130.30 (rdap-1.verisigndns.com). This traffic appears to be related to domain/RDAP or WHOIS-style lookups.