diff --git a/contrib/testing/smtp-idna-check.py b/contrib/testing/smtp-idna-check.py
index a2633a8..f38e586 100755
--- a/contrib/testing/smtp-idna-check.py
+++ b/contrib/testing/smtp-idna-check.py
@@ -281,7 +281,6 @@ def perform_test() -> None:
 
     original_smtp = read_configuration("smtp")
     original_queue = read_configuration("queue")
-    original_aliases = read_configuration("aliases/bongo.test")
     original_global = read_configuration("global")
     all_configurations = {
         name: read_configuration(name)
@@ -316,12 +315,6 @@ def perform_test() -> None:
     test_queue["queueinterval"] = 1
     test_queue["retry_initial_seconds"] = 2
     test_queue["retry_maximum_seconds"] = 4
-    test_aliases = copy.deepcopy(original_aliases)
-    aliases = test_aliases.setdefault("aliases", {})
-    if not isinstance(aliases, dict) or TOKEN in aliases:
-        raise SMTP26Error("temporary alias cannot be installed safely")
-    aliases[TOKEN] = f"capture@{REMOTE_UNICODE_DOMAIN}"
-
     resolver_metadata = SMTP07.regular_file_metadata(SMTP07.RESOLV_CONF)
     original_resolver = SMTP07.RESOLV_CONF.read_bytes()
     upstream = SMTP07.original_nameserver(original_resolver)
@@ -344,9 +337,8 @@ def perform_test() -> None:
     signal.signal(signal.SIGHUP, terminate)
     try:
         replace_configuration("smtp", test_smtp)
-        replace_configuration("queue", test_queue)
-        replace_configuration("aliases/bongo.test", test_aliases)
         configs_changed = True
+        replace_configuration("queue", test_queue)
         SMTP07.run([SMTP07.SYSTEMCTL, "stop", "bongo.service"])
         SMTP07.save_resolver(original_resolver)
         SMTP07.atomic_write(
@@ -393,7 +385,8 @@ def perform_test() -> None:
 
         smtp_submit(
             internal_host, internal_port,
-            f"{TOKEN}@bongo.test", direct_marker, smtputf8=False,
+            f"capture@{REMOTE_UNICODE_DOMAIN}", direct_marker,
+            smtputf8=True,
         )
         _mail, rcpt, _data = wait_capture(
             direct_marker,
@@ -461,7 +454,6 @@ def perform_test() -> None:
                 restoration_errors.append(f"message cleanup failed: {error}")
             if configs_changed:
                 for name, value in (
-                    ("aliases/bongo.test", original_aliases),
                     ("queue", original_queue),
                     ("smtp", original_smtp),
                 ):
@@ -504,15 +496,13 @@ def perform_test() -> None:
         raise SMTP26Error("SMTP configuration was not restored exactly")
     if read_configuration("queue") != original_queue:
         raise SMTP26Error("Queue configuration was not restored exactly")
-    if read_configuration("aliases/bongo.test") != original_aliases:
-        raise SMTP26Error("alias configuration was not restored exactly")
     if SMTP07.RESOLV_CONF.read_bytes() != original_resolver:
         raise SMTP26Error("resolver configuration was not restored exactly")
     print(
         "SMTP-26 PASS "
         "idna=idna2008/nontransitional "
         "config=hostname/hosted/relay/lmtp "
-        "aliases=unicode-target/alabel-route "
+        "routing=unicode-recipient/alabel-envelope "
         "inbound=unicode-smtputf8/alabel-ascii "
         "invalid-alabel=501 "
         "dns=alabel-mx/relay "