diff --git a/modoboa_webmail/static/modoboa_webmail/js/webmail.js b/modoboa_webmail/static/modoboa_webmail/js/webmail.js
index b31b5e4..ab5b71d 100644
--- a/modoboa_webmail/static/modoboa_webmail/js/webmail.js
+++ b/modoboa_webmail/static/modoboa_webmail/js/webmail.js
@@ -1140,7 +1140,7 @@ Webmail.prototype = {
         this.page_update(resp);
         if (this.options.contactListUrl) {
             this.$select = $('.selectize-contact').selectize({
-                delimiter: ';',
+                delimiter: ',',
                 valueField: 'address',
                 searchField: 'address',
                 options: [],
diff --git a/modoboa_webmail/validators.py b/modoboa_webmail/validators.py
index a11fbe0..217c932 100644
--- a/modoboa_webmail/validators.py
+++ b/modoboa_webmail/validators.py
@@ -8,12 +8,11 @@
 
 class EmailListValidator(object):
 
-    """Validate a semi-comma separated list of email."""
+    """Validate a list of email."""
 
     def __call__(self, value):
         value = force_text(value)
-        emails = [email.strip() for email in value.split(";")]
-        addresses = getaddresses(emails)
+        addresses = getaddresses([value])
         [validate_email(email) for name, email in addresses]