In order to be able to save a message as a draft, there must be a "Drafts" folder.
Create a Drafts folder if one does not already exist
Log on to Webmail with your Expedient email address and username.
Click Folders on the menu.
Create a folder named Drafts.
Select the Drafts folder in Folder Preferences
From the Options menu, select Folder Preferences on the right.
From the drop-down list labeled Draft Folder that is located under the Special Folder Options at the top of the page, select Drafts.
Click the Submit button at the bottom to save your changes.
Compose your message and save to the Drafts folder
Compose a message.
To save the message in the Drafts folder, click the Save Draft button on the message window that is between the header and body of the message.
Click the refresh folder list on the left menu under Folders.
To resume composing the message in the Drafts folder
Click the Drafts folder on the left.
Click the subject of the message you want to continue to compose.
Click the Resume Draft link that is above the Subject: of the message at the upper left.
You will return you to compose message window where you can edit the message and either save it again to Drafts if you need more time to complete it or send it normally.