I need to Configure Project'or RIA to send email on Task assignment

Not possible yet. It is subject of Ticket #908. You must refer to status change (changing to "assigned" for instance)

send email on closure

Easy : go to menu Parameters => Controls & automations mail on events
Add a line for Ticket / new status = closed. Select receivers. Save.
Be sure resources have a valid email defined.
Check mail parameters on global parameters screen.

It should work.

Hi babynus,

Thanks for the suggestion. I have configured the email alerts and can see the updates in log file.

System is unable to send email alerts, I am getting below error message in log file, can you please help to resolve this issue ?

ERROR ***** Exception-[22001] SQLSTATE[22001]: String data, right truncated: 1406 Data too long for column 'mailBody' at row 1

Thanks & Regards,
Praveen Janardhana

This issue is fixed in V3.0. 😉