diff --git a/DEVNOTES.md b/DEVNOTES.md
index 56099dd..a44ee63 100644
--- a/DEVNOTES.md
+++ b/DEVNOTES.md
@@ -4,6 +4,7 @@ Notes for developers
 
 ```
 python -m unittest tests.test_pop.TestPop3.test_CAPA
+python -m unittest tests.test_smtp.TestSMTP
 ```
 
 ## Patch for enable logging in test
@@ -14,7 +15,11 @@ Patch generated using below
 git diff --patch -U1 tests >> ./DEVNOTES.md
 ```
 
-Apply with below
+Apply with below. Disables smtp test mail dir cleanup.
+```
+ls -ltd /tmp/m41*
+git checkout tests
+```
 
 ```bash
 git apply - <<PATCH
@@ -27,6 +32,18 @@ index 55c1a91..a825665 100644
 -    logging.basicConfig(level=logging.CRITICAL)
 +    logging.basicConfig(level=logging.DEBUG)
      td = tempfile.TemporaryDirectory(prefix="m41.pop.")
+diff --git a/tests/test_smtp.py b/tests/test_smtp.py
+index 0554d4c..52d147b 100644
+--- a/tests/test_smtp.py
++++ b/tests/test_smtp.py
+@@ -18,5 +18,5 @@ def setUpModule() -> None:
+     global MAILS_PATH
+-    logging.basicConfig(level=logging.CRITICAL)
++    logging.basicConfig(level=logging.DEBUG)
+     td = tempfile.TemporaryDirectory(prefix="m41.smtp.")
+-    unittest.addModuleCleanup(td.cleanup)
++    # unittest.addModuleCleanup(td.cleanup)
+     MAILS_PATH = Path(td.name)
 PATCH
 ```
 
diff --git a/Pipfile.lock b/Pipfile.lock
index 1eea2a3..33e0d74 100644
--- a/Pipfile.lock
+++ b/Pipfile.lock
@@ -18,12 +18,12 @@
     "default": {
         "aiosmtpd": {
             "hashes": [
-                "sha256:78d7b14f859ad0e6de252b47f9cf1ca6f1c82a8b0f10a9e39bec7e915a6aa5fe",
-                "sha256:a196922f1903e54c4d37c53415b7613056d39e2b1e8249f324b9ee7a439be0f1"
+                "sha256:5a811826e1a5a06c25ebc3e6c4a704613eb9a1bcf6b78428fbe865f4f6c9a4b8",
+                "sha256:72c99179ba5aa9ae0abbda6994668239b64a5ce054471955fe75f581d2592475"
             ],
             "index": "pypi",
             "markers": "python_version >= '3.8'",
-            "version": "==1.4.5"
+            "version": "==1.4.6"
         },
         "atpublic": {
             "hashes": [
diff --git a/mail4one/pop3.py b/mail4one/pop3.py
index 9f56854..ecf45e8 100644
--- a/mail4one/pop3.py
+++ b/mail4one/pop3.py
@@ -340,7 +340,9 @@ def make_pop_server_callback(mails_path: Path, users: list[User], timeout_second
     async def session_cb(reader: StreamReader, writer: StreamWriter):
         c_shared_state.set(s_state)
         ip, _ = writer.get_extra_info("peername")
-        c_state.set(State(reader=reader, writer=writer, ip=ip, req_id=s_state.next_id()))
+        c_state.set(
+            State(reader=reader, writer=writer, ip=ip, req_id=s_state.next_id())
+        )
         logger.info("Got pop server callback")
         try:
             try:
diff --git a/mail4one/smtp.py b/mail4one/smtp.py
index fa0a557..4e69a84 100644
--- a/mail4one/smtp.py
+++ b/mail4one/smtp.py
@@ -20,21 +20,31 @@ logger = logging.getLogger("smtp")
 
 
 class MyHandler(AsyncMessage):
-    def __init__(self, mails_path: Path, mbox_finder: Callable[[str], list[str]]):
+    def __init__(
+        self,
+        mails_path: Path,
+        mbox_finder: Callable[[str], list[str]],
+        listener_type: str,
+    ):
         super().__init__()
         self.mails_path = mails_path
         self.mbox_finder = mbox_finder
         self.rcpt_tos = []
         self.peer = None
+        self.starttls = False
+        self.listener_type = listener_type
 
     async def handle_DATA(
         self, server: SMTP, session: SMTPSession, envelope: SMTPEnvelope
     ) -> str:
         self.rcpt_tos = envelope.rcpt_tos
         self.peer = session.peer
+        if session.ssl:
+            self.starttls = True
         return await super().handle_DATA(server, session, envelope)
 
     async def handle_message(self, message: Message):  # type: ignore[override]
+        message["X-SSL"] = f"Type: {self.listener_type}, STARTTLS: {self.starttls}"
         all_mboxes: set[str] = set()
         for addr in self.rcpt_tos:
             for mbox in self.mbox_finder(addr.lower()):
@@ -68,7 +78,7 @@ def protocol_factory_starttls(
 ):
     logger.info("Got smtp client cb starttls")
     try:
-        handler = MyHandler(mails_path, mbox_finder)
+        handler = MyHandler(mails_path, mbox_finder, "starttls")
         smtp = SMTP(
             handler=handler,
             require_starttls=require_starttls,
@@ -86,7 +96,7 @@ def protocol_factory(
 ):
     logger.info("Got smtp client cb")
     try:
-        handler = MyHandler(mails_path, mbox_finder)
+        handler = MyHandler(mails_path, mbox_finder, "plain")
         smtp = SMTP(handler=handler, enable_SMTPUTF8=smtputf8)
     except:
         logger.exception("Something went wrong")
diff --git a/requirements.txt b/requirements.txt
index 07bc9f1..6a8cbcd 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,5 +1,5 @@
 -i https://pypi.org/simple
-aiosmtpd==1.4.5; python_version >= '3.8'
+aiosmtpd==1.4.6; python_version >= '3.8'
 atpublic==4.1.0; python_version >= '3.8'
 attrs==23.2.0; python_version >= '3.7'
 python-jata==1.2; python_version >= '3.8'
diff --git a/tests/test_smtp.py b/tests/test_smtp.py
index b69b0c5..0554d4c 100644
--- a/tests/test_smtp.py
+++ b/tests/test_smtp.py
@@ -61,6 +61,7 @@ class TestSMTP(unittest.IsolatedAsyncioTestCase):
         X-Peer: ('127.0.0.1', {local_port})
         X-MailFrom: foo@sender.com
         X-RcptTo: foo@bar.com
+        X-SSL: Type: plain, STARTTLS: False
 
         Hello world
         Byee