diff --git a/orm/users.py b/orm/users.py
index f7bf6a3..eaae679 100644
--- a/orm/users.py
+++ b/orm/users.py
@@ -771,7 +771,7 @@ def __init__(self, aliasname, main, *args, **kwargs):
         self.fromdict(aliasname)
 
     def fromdict(self, aliasname, *args, **kwargs):
-        if not formats.email.match(aliasname):
+        if not formats.email.match(aliasname) and not formats.email_domain.match(aliasname):
             raise ValueError("'{}' is not a valid email address".format(aliasname))
         self.aliasname = aliasname
         return self
diff --git a/tools/formats.py b/tools/formats.py
index c2e9276..6499fa2 100644
--- a/tools/formats.py
+++ b/tools/formats.py
@@ -5,4 +5,5 @@
 import re
 
 email = re.compile(r"^(?P<user>[a-zA-Z0-9_.+-]+)@(?P<domain>[a-zA-Z0-9-]+\.[a-zA-Z0-9-.]+)$")
+email_domain = re.compile(r"^@(?P<domain>[a-zA-Z0-9-]+\.[a-zA-Z0-9-.]+)$")
 domain = re.compile(r"^[a-zA-Z0-9-]+\.[a-zA-Z0-9-.]+$")