Since version 6.0.0 Smart Checklist for Jira Server and Data Center support email notifications about checklist item assignment to Jira user.
By default, the feature is disabled and assignees do not receive email notifications.
Navigate to the Jira Administration Settings → Manage Apps → Smart Checklist Settings.
Navigate to the “Global settings” tab.
Turn on the “Notify assignees” toggle:
Turn off the “Notify assignees” toggle:
Once the feature is enabled - newly assigned users will receive email notifications:
when they assigned to checklist item via quick view mode
when they assigned to checklist item via full-screen editor
Each unique assignee will receive an email after assignment (even to the same checklist item).
Assignee will not receive an email in the next cases:
assignee is assigned to item, where he is already an assignee
content of checklist item with assignee is updated
assignee added to header item
Checklist content markup in the email is almost the same as visible in the Smart Checklist add-on: