The Data Download and Job Submitter services can send email messages on job completion to notify a user of either job success or job failure. To configure your email, you need access to an SMTP server.
Log in to the FME Server web user interface:
http://<host>/fmeserver
In the resulting form, configure the parameters.
For details on the parameters, see Subscriptions in the FME Server Web User Interface help.
For more information, see Email Subscriber in the FME Server Reference Manual.