fix: show pre-forward auth verdict (authResultsOriginal) instead of misleading post-forward SPF/DKIM/DMARC in evidence card

components/phishing/evidence-card.tsx

@@ -38,7 +38,7 @@ export interface EvidenceMessageHeaders {
   messageId: string | null;
   receivedChain: string[];
   authResults: { spf?: string | null; dkim?: string | null; dmarc?: string | null };
-  authResultsOriginal?: Record<string, unknown> | null;
+  authResultsOriginal?: { spf?: string | null; dkim?: string | null; dmarc?: string | null } | null;
 }
 
 export interface EvidenceAttachment {
@@ -101,6 +101,28 @@ function authBadge(value: string | null | undefined) {
   return <StatusBadge variantClass="bg-slate-500/15 text-slate-600">{normalized || 'none'}</StatusBadge>;
 }
 
+/**
+ * Mirrors campaign-classifier.ts's effectiveAuthResults(): the outer
+ * Authentication-Results header reflects the reporting/forwarding hop, not
+ * the reported message's real delivery — it's near-universally broken for
+ * tickets that came through Outlook's Report Message add-in. Prefer the
+ * pre-forward authResultsOriginal when captured; only fall back to the
+ * outer header when no original was recorded (e.g. a manually-forwarded or
+ * KnowBe4 PhishER-sourced ticket).
+ */
+function effectiveAuthResults(headers: EvidenceMessageHeaders | undefined): {
+  result: EvidenceMessageHeaders['authResults'];
+  isOriginal: boolean;
+} {
+  if (!headers) {
+    return { result: {}, isOriginal: false };
+  }
+  if (headers.authResultsOriginal) {
+    return { result: headers.authResultsOriginal, isOriginal: true };
+  }
+  return { result: headers.authResults, isOriginal: false };
+}
+
 function recipientStatusBadge(status: string) {
   switch (status) {
     case 'delivered':
@@ -136,6 +158,8 @@ export function EvidenceCard({ messages, blastRadius }: EvidenceCardProps) {
     [messages, selectedId],
   );
 
+  const authResults = useMemo(() => effectiveAuthResults(message?.headers), [message]);
+
   return (
     <Card>
       <CardHeader>
@@ -210,13 +234,20 @@ export function EvidenceCard({ messages, blastRadius }: EvidenceCardProps) {
                 <span className="font-mono text-xs truncate">{message.headers.messageId ?? '—'}</span>
 
                 <span className="text-muted-foreground">SPF</span>
-                <span>{authBadge(message.headers.authResults.spf)}</span>
+                <span>{authBadge(authResults.result.spf)}</span>
 
                 <span className="text-muted-foreground">DKIM</span>
-                <span>{authBadge(message.headers.authResults.dkim)}</span>
+                <span>{authBadge(authResults.result.dkim)}</span>
 
                 <span className="text-muted-foreground">DMARC</span>
-                <span>{authBadge(message.headers.authResults.dmarc)}</span>
+                <span>{authBadge(authResults.result.dmarc)}</span>
+
+                <span />
+                <span className="text-xs text-muted-foreground">
+                  {authResults.isOriginal
+                    ? 'as verified at original delivery'
+                    : 'as received (no pre-forward record)'}
+                </span>
               </div>
 
               {message.headers.receivedChain.length > 0 && (