diff --git a/requeue-email.sh b/requeue-email.sh
index 1e319bb..5963dbd 100644
--- a/requeue-email.sh
+++ b/requeue-email.sh
@@ -72,7 +72,8 @@ echo "Versuche Subject zu extrahieren..."
 TEMP_FILE="/tmp/email-${S3_KEY}.eml"
 aws s3 cp "s3://$BUCKET/$S3_KEY" "$TEMP_FILE" --region "$AWS_REGION" --quiet
 
-SUBJECT=$(grep -m1 "^Subject:" "$TEMP_FILE" | sed 's/Subject: //' | head -c 200 || echo "(no subject)")
+# Subject extrahieren und JSON-escape (Newlines, Tabs, Quotes entfernen)
+SUBJECT=$(grep -m1 "^Subject:" "$TEMP_FILE" | sed 's/Subject: //' | tr -d '\n\r\t"' | head -c 200 || echo "(no subject)")
 rm -f "$TEMP_FILE"
 
 echo "Subject: $SUBJECT"
@@ -82,23 +83,28 @@ echo ""
 echo "Sende Message in Queue..."
 TIMESTAMP=$(date +%s)
 
+# JSON-escape für alle Felder
+FROM_ESCAPED=$(echo "$FROM" | sed 's/"/\\"/g' | tr -d '\n\r\t')
+RECIPIENT_ESCAPED=$(echo "$RECIPIENT" | sed 's/"/\\"/g' | tr -d '\n\r\t')
+SUBJECT_ESCAPED=$(echo "$SUBJECT" | sed 's/"/\\"/g' | tr -d '\n\r\t')
+
 RESPONSE=$(aws sqs send-message \
     --queue-url "$QUEUE_URL" \
     --region "$AWS_REGION" \
     --message-body "{
         \"bucket\": \"$BUCKET\",
         \"key\": \"$S3_KEY\",
-        \"from\": \"$FROM\",
-        \"recipient\": \"$RECIPIENT\",
+        \"from\": \"$FROM_ESCAPED\",
+        \"recipient\": \"$RECIPIENT_ESCAPED\",
         \"domain\": \"$DOMAIN\",
-        \"subject\": \"$SUBJECT\",
+        \"subject\": \"$SUBJECT_ESCAPED\",
         \"message_id\": \"$S3_KEY\",
         \"timestamp\": $TIMESTAMP
     }" \
     --message-attributes "{
         \"domain\": {\"StringValue\": \"$DOMAIN\", \"DataType\": \"String\"},
         \"bucket\": {\"StringValue\": \"$BUCKET\", \"DataType\": \"String\"},
-        \"recipient\": {\"StringValue\": \"$RECIPIENT\", \"DataType\": \"String\"},
+        \"recipient\": {\"StringValue\": \"$RECIPIENT_ESCAPED\", \"DataType\": \"String\"},
         \"message_id\": {\"StringValue\": \"$S3_KEY\", \"DataType\": \"String\"}
     }")