To create a [Deferred] folder for your resource emails in Thunderbird:
- In the Folders pane on the left side of Thunderbird, highlight the location where you want to create the new folder.
- Right-click and select New Folder (or New Subfolder).
- In the New Folder dialog box, type “[Deferred]” as your new folder name, including the brackets. The Create as a Subfolder of option lets you decide where to put it.
- Click OK.
The [Deferred] folder now appears in the folder list. This is where you will save emails connected to tasks.