check email validation

tests/acceptance/features/apiOcm/createInvitation.feature

@@ -60,7 +60,7 @@ Feature: create invitation
       """
 
   @issue-9591
-  Scenario: user creates invitation with email and description
+  Scenario: user creates invitation with valid email and description
     Given using server "LOCAL"
     When "Alice" creates the federation share invitation with email "brian@example.com" and description "a share invitation from Alice"
     Then the HTTP status code should be "200"
@@ -71,8 +71,7 @@ Feature: create invitation
         "required": [
           "expiration",
           "token",
-          "description",
-          "recipient"
+          "description"
         ],
         "properties": {
           "expiration": {
@@ -85,9 +84,6 @@ Feature: create invitation
           },
           "description": {
             "const": "a share invitation from Alice"
-          },
-          "description": {
-            "const": "brian@example.com"
           }
         }
       }
@@ -124,6 +120,20 @@ Feature: create invitation
       }
       """
 
+
+  Scenario Outline: user creates invitation with valid/invalid email
+    Given using server "LOCAL"
+    When "Alice" creates the federation share invitation with email "<email>" and description "a share invitation from Alice"
+    Then the HTTP status code should be "<code>"
+    Examples:
+      | email                             | code |
+      | user@subdomain.example.longdomain | 200  |
+      | user.bob+123@domain.test-123.com  | 200  |
+      | user.example.com                  | 400  |
+      | user@.com                         | 400  |
+      | @domain.com                       | 400  |
+      | user@domain..com                  | 400  |
+
   @email
   Scenario: federated user gets an email notification if their email was specified when creating the federation share invitation
     Given using server "LOCAL"
@@ -134,8 +144,8 @@ Feature: create invitation
 
       Alice Hansen (alice@example.org) wants to start sharing collaboration resources with you.
       Please visit your federation provider and use the following details:
-        Token: %fed_invitation_token%
-        ProviderDomain: https://ocis-server:9200
+      Token: %fed_invitation_token%
+      ProviderDomain: https://ocis-server:9200
       """
 
   @env-config