I am trying to configure pipeline having email to be sent about pipeline status. For that I came across two mail configurations. 
I didn't able to find difference between these two configurations.
I am trying to configure pipeline having email to be sent about pipeline status. For that I came across two mail configurations. 
I didn't able to find difference between these two configurations.
They are two different plugins.
E-mail Notification is from the plugin Mailer and allows to send a basic email.
Extended E-mail Notification is from the plugin Email-ext and allows more customization, e.g. from the plugin's page: "when an email is sent, who should receive it, and what the email says". This plugin also allows to set default global parameters (e.g. recipient list) so you don't have to set these parameters on each and every project.