how to disable new task notification mails in appian cloud environment whenever

@jayanthik I would like to suggest to explore the documentation at https://forum.appian.com/suite/help/7.11/Configuring_Notifications.html and https://forum.appian.com/suite/help/7.10/Creating_Notification_Rules.html which gives you a high level view. The documentation at the specified links explains how the notifications can be disabled globally or just for a targeted user.
Next to above, I would like to suggest to go through 'Portal Utilities' plugin at https://forum.appian.com/suite/tempo/records/type/components/item/i8BCLGOdlMUpdGVqT-RV7oRg74uEGJO5CIYYUGnCQV9fkwPfzO8FK-QDPV219yXWA/view/summary. Aditionally you may want to consider searching the posts in forum which will give you a very good idea of accomplishing your use case.
Please bear in mind that you may need to raise a support ticket if you wish to make any changes in the settings of server. Let's see if any other practitioners comes up with new suggestions.

@jayanthik I would like to suggest to explore the documentation at https://forum.appian.com/suite/help/7.11/Configuring_Notifications.html and https://forum.appian.com/suite/help/7.10/Creating_Notification_Rules.html which gives you a high level view. The documentation at the specified links explains how the notifications can be disabled globally or just for a targeted user.
Next to above, I would like to suggest to go through 'Portal Utilities' plugin at https://forum.appian.com/suite/tempo/records/type/components/item/i8BCLGOdlMUpdGVqT-RV7oRg74uEGJO5CIYYUGnCQV9fkwPfzO8FK-QDPV219yXWA/view/summary. Aditionally you may want to consider searching the posts in forum which will give you a very good idea of accomplishing your use case.
Please bear in mind that you may need to raise a support ticket if you wish to make any changes in the settings of server. Let's see if any other practitioners comes up with new suggestions.