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Send evidence to abuse@kasapost.com.
Include full message headers, the sending address, the recipient address, timestamps, and a short description of the problem. Full headers help identify the source and verify whether KasaPost infrastructure was involved.
Spam or unwanted bulk mailReport unexpected commercial or bulk messages.
Phishing or impersonationReport login theft, fake invoices, brand impersonation, and credential collection.
Malware or dangerous linksReport malicious attachments, unsafe links, or suspicious payloads.