diff --git a/restart_prompt.md b/restart_prompt.md
index 5145baf..e1c0006 100644
--- a/restart_prompt.md
+++ b/restart_prompt.md
@@ -76,6 +76,7 @@ Scripts using shared IMAP folder handling:
 `verplaats_bestaand.py` current behavior:
 
 - Default mode is dry-run; real moves require `--uitvoeren` and an interactive `JA` confirmation.
+- Account selection is explicit with `--account <naam>`; use `--account backup` for the disposable backup mailbox. The script prints both the config account name and mailbox address before connecting.
 - `--audit` is available only in dry-run mode. It suppresses per-message dry-run lines and prints planned move counts grouped by source folder and destination folder for step 2 and step 3.
 - IMAP `LIST`, `SELECT`, `UID SEARCH`, and `UID FETCH` aborts are logged and retried once after reconnecting. If reconnect also fails, the script records an `ABORT`/`ERROR` in `verplaats_log.json` instead of printing a Python traceback.
 - `MAP_RENAMES` is intentionally empty.
@@ -192,7 +193,7 @@ Latest live mailbox verification:
 
 Recommended next work:
 
-1. Ask the user to run a non-destructive dry-run sorter audit on `backup@australius.nl`, for example `python3 verplaats_bestaand.py --audit` with config pointed at the backup account, then review planned moves by source and destination.
+1. Ask the user to run a non-destructive dry-run sorter audit on `backup@australius.nl`: `python3 verplaats_bestaand.py --account backup --audit`, then review planned moves by source and destination.
 2. Review the audit output for suspicious high-volume destinations, missing matches, and unexpected `Afmelden.*` or invoice routes before approving any actual sorting.
 3. Add shared operation helpers where useful:
    - UID fetch wrappers.
diff --git a/verplaats_bestaand.py b/verplaats_bestaand.py
index 6b341b1..ca34c0e 100644
--- a/verplaats_bestaand.py
+++ b/verplaats_bestaand.py
@@ -13,7 +13,8 @@ Stap 2 – Per-bericht routing:
 Stap 3 – Facturen per kwartaal sorteren (Facturen - te verwerken).
 
 Standaard: DRY RUN (laat zien wat er zou gebeuren, verplaatst niets).
-Echt uitvoeren: python3 verplaats_bestaand.py --uitvoeren
+Account kiezen: python3 verplaats_bestaand.py --account backup --audit
+Echt uitvoeren: python3 verplaats_bestaand.py --account backup --uitvoeren
 
 Log: verplaats_log.json
 """
@@ -526,6 +527,19 @@ def load_log() -> dict:
     return {}
 
 
+def account_name_from_args() -> str | None:
+    args = sys.argv[1:]
+    if "--account" not in args:
+        return None
+
+    idx = args.index("--account")
+    if idx + 1 >= len(args) or args[idx + 1].startswith("--"):
+        print("Gebruik: python3 verplaats_bestaand.py --account <naam> [--audit|--uitvoeren]")
+        sys.exit(1)
+
+    return args[idx + 1]
+
+
 # ── main ──────────────────────────────────────────────────────────────────────
 
 def run():
@@ -545,8 +559,9 @@ def run():
             print("Afgebroken.")
             sys.exit(0)
 
-    cfg = config.load()
-    print(f"Account: {cfg.username}\n")
+    account_name = account_name_from_args()
+    cfg = config.load(account_name)
+    print(f"Account: {cfg.name} ({cfg.username})\n")
 
     print(f"Verbinden met {cfg.imap_host}:{cfg.imap_port} ...")
     session = ImapSession(cfg)