diff --git a/DOCUMENTATION.md b/DOCUMENTATION.md
index cdae9f65c..c012b6671 100644
--- a/DOCUMENTATION.md
+++ b/DOCUMENTATION.md
@@ -807,6 +807,12 @@ providers like ldap, kerberos
 
 Default: `False`
 
+##### strip_domain
+
+Strip domain from username
+
+Default: `False`
+
 #### rights
 
 ##### type
diff --git a/config b/config
index 114820add..a9fe9da71 100644
--- a/config
+++ b/config
@@ -73,6 +73,8 @@
 # Convert username to lowercase, must be true for case-insensitive auth providers
 #lc_username = False
 
+# Strip domain name from username
+#strip_domain = False
 
 [rights]
 
diff --git a/radicale/auth/__init__.py b/radicale/auth/__init__.py
index 15d91ec5f..296dbfa84 100644
--- a/radicale/auth/__init__.py
+++ b/radicale/auth/__init__.py
@@ -52,6 +52,7 @@ def load(configuration: "config.Configuration") -> "BaseAuth":
 class BaseAuth:
 
     _lc_username: bool
+    _strip_domain: bool
 
     def __init__(self, configuration: "config.Configuration") -> None:
         """Initialize BaseAuth.
@@ -63,6 +64,7 @@ def __init__(self, configuration: "config.Configuration") -> None:
         """
         self.configuration = configuration
         self._lc_username = configuration.get("auth", "lc_username")
+        self._strip_domain = configuration.get("auth", "strip_domain")
 
     def get_external_login(self, environ: types.WSGIEnviron) -> Union[
             Tuple[()], Tuple[str, str]]:
@@ -91,4 +93,8 @@ def _login(self, login: str, password: str) -> str:
         raise NotImplementedError
 
     def login(self, login: str, password: str) -> str:
-        return self._login(login, password).lower() if self._lc_username else self._login(login, password)
+        if self._lc_username:
+            login = login.lower()
+        if self._strip_domain:
+            login = login.split('@')[0]
+        return self._login(login, password)
diff --git a/radicale/config.py b/radicale/config.py
index 967580cb0..d1b66251a 100644
--- a/radicale/config.py
+++ b/radicale/config.py
@@ -191,6 +191,10 @@ def json_str(value: Any) -> dict:
             "value": "1",
             "help": "incorrect authentication delay",
             "type": positive_float}),
+        ("strip_domain", {
+            "value": "False",
+            "help": "strip domain from username",
+            "type": bool}),
         ("lc_username", {
             "value": "False",
             "help": "convert username to lowercase, must be true for case-insensitive auth providers",
diff --git a/radicale/tests/test_auth.py b/radicale/tests/test_auth.py
index 858e08279..3604e2f9c 100644
--- a/radicale/tests/test_auth.py
+++ b/radicale/tests/test_auth.py
@@ -115,6 +115,16 @@ def test_htpasswd_whitespace_password(self) -> None:
     def test_htpasswd_comment(self) -> None:
         self._test_htpasswd("plain", "#comment\n #comment\n \ntmp:bepo\n\n")
 
+    def test_htpasswd_lc_username(self) -> None:
+        self.configure({"auth": {"lc_username": "True"}})
+        self._test_htpasswd("plain", "tmp:bepo", (
+            ("tmp", "bepo", True), ("TMP", "bepo", True), ("tmp1", "bepo", False)))
+
+    def test_htpasswd_strip_domain(self) -> None:
+        self.configure({"auth": {"strip_domain": "True"}})
+        self._test_htpasswd("plain", "tmp:bepo", (
+            ("tmp", "bepo", True), ("tmp@domain.example", "bepo", True), ("tmp1", "bepo", False)))
+
     def test_remote_user(self) -> None:
         self.configure({"auth": {"type": "remote_user"}})
         _, responses = self.propfind("/", """\