No notification

If one or more users are not receiving emails you should:

• Check if outgoing mail is enabled on your instance:
  E.g. https://your-instance-name.atlassian.net/secure/admin/OutgoingMailServers.jspa
  (Please enter your own instance name)

• Check if the user has access to the Jira instance:
  Users without permissions or with removed permissions will no longer receive any emails.

• Check if the Issue is not deleted