Hello,

Please find below answers to your questions:

1. First query : Email Template vs. Email HTML Template:

   • Email Template: Allows you to define templates for recurring emails using basic formatting, such as whitespace, newlines, etc.
   • Email HTML Template: Provides the ability to create more visually appealing and professional emails by using HTML & JavaScript. Using this, you can include more advance formatting and styling, making your emails look polished.

2. Conditional Flow will help you to solve your Second Query:
   You can use conditional flows to handle different scenarios by setting up multiple conditions based on expected parameters.
   For example:

   • Condition One - If suspicious user activity is detected, trigger an email to the Active Directory (AD) team to reset the user's password.
   • Condition Two - If the user needs to be informed, send an email to the user’s email address.

I’ve also attached a reference snippet for further clarity.

Thanks & Regards,

Suraj Kadav

is it possible to select template (which is given as input in the block) , analyst wants to select the template if he wants to send a additional emails and also analyst wants view the emails to verify before sending it out

Can i get example for Email Template and. Email HTML Template:

Yes, you have to use manual action for it.

Please find below:

Email Template:

HTML Email Template:

HTML Email Template Output will look like below in mail body (You can change formatting, color, font, etc.):

Hi , yes i have used manual action to select the template but the client requirement is make it as a block and give input param for required template name ....is it possible?

thank you for detailed explanation, 

before sending an email , analyst want to view and confirm some of the important fields during investigation. (View -> how email will look like and confirms all the fields and later analyst will click on send)

is it possible ?

Manual action will help you in this case, but only to view and confirm some of the important fields during investigation. 
However, there is no direct way through which Analyst can see, how email will look like.

Analysts will see placeholder not actual value in case of manual

Yes, you can use Get Context Value Action to see Placeholder value.