Like Shawn said, check your logs.
When you create a "note external" it will send an email to the customer, if it's not doing that then the only place to see why is in the log files.
Hi,
Thanks for the suggestion. Its working now.
I want send Email notification to the customer through “note external” once the ticket is generated.
Please help me in that.
Thanks a lot.
Regards
Nikhil