Parses DMARC aggregate (RUA) reports with the local XML parser: reporter, date range, published policy, and every record with its source IP, message count, disposition, DKIM/SPF alignment, header_from and raw authentication results. Sources are aggregated with pass rates, and findings call out failing senders, p=none delivery, pct sampling and SPF-only senders that break on forwarding. Several reports can be pasted back to back. Output as Markdown, JSON or CSV. Everything runs locally.