Issue Summary

Currently, Jira allows updating the notification sender email address for a single project only  using the below steps

To configure the sender address for a project:

1. Choose  Settings   > Projects.
2. Find the project you want to change the sender address for and select more    > Project settings.
3. Select Notification from the project sidebar.
4. Select Edit under Notification email.
5. On the Notification email page, select Edit next to the email card.
6. From the Email drop-down, choose a custom email address, or use the default Jira cloud email.

But there is no way to update sender email address for multiple projects. Need to allow to update the sender email address for multiple projects in one go.

Workaround

Currently, there is no known workaround for this behavior. A workaround will be added here when available.