Available in Salesforce Classic in: All Editions Except Database.com User Type Effects of Enabling the Feature Effects of Disabling the Feature Salesforce1 users, including Communities users In , the Assigns you a task checkbox is displayed. In , the Assigns you a task checkbox isn’t displayed. Lightning Experience users In Lightning Experience, the Email me when someone assigns me a task checkbox isn’t displayed. However, users who have turned on that option in Salesforce Classic still receive email notifications. No user receives an email notification when another user assigns a task. Salesforce Classic users, including Communities users Partner portal users On the Create Task page, the Send email notification and Make this the default setting checkboxes are displayed, and email notifications are sent according to whether the checkboxes are selected. Users who are assigned tasks that are generated by workflow task rules Email notifications are sent to task assignees according to workflow task rules. Users who are assigned tasks through an API Use an API to set the triggerUserEmail value. The default is false. Users who are assigned tasks through Apex Notifications that are sent through Apex are sent in the context of the request header. If a value in the request header is set so that email notifications are sent, email notifications are sent to users when tasks are assigned. Apex processes the header sequentially from the first line to the last. If a statement in the request header indicates that a task notification is required, an email notification is sent regardless of statements later in the header.