Fixed SIP address and E-mail address regular expressions

blink/accounts.py

@@ -264,11 +264,11 @@ class AddAccountDialog(base_class, ui_class):
         self.display_name_editor.regexp = re.compile('^.*$')
         self.name_editor.regexp = re.compile('^.+$')
         self.username_editor.regexp = re.compile('^\w(?<=[^0_])[\w.-]{1,65}(?<=[^_.-])$', re.IGNORECASE) # in order to enable unicode characters add re.UNICODE to flags
-        self.sip_address_editor.regexp = re.compile('^[^@]+@.+$')
+        self.sip_address_editor.regexp = re.compile('^[^@\s]+@[^@\s]+$')
         self.password_editor.regexp = re.compile('^.*$')
         self.new_password_editor.regexp = re.compile('^.{8,}$')
         self.verify_password_editor.regexp = re.compile('^$')
-        self.email_address_editor.regexp = re.compile('^[^@]+@.+$')
+        self.email_address_editor.regexp = re.compile('^[^@\s]+@[^@\s]+$')
 
     def _get_display_name(self):
         if self.panel_view.currentWidget() is self.add_account_panel: