When you save a draft while composing a message in LPL WebMail, the draft goes to your drafts folder. You can see your drafts by clicking on the dark blue rectangular button just above the LPL logo on the left margin of your browser window. By default, this button is set to "INBOX". Clicking this button will give you a list of your folders. Select "drafts" from this list to see the entries that are in your drafts folder. You can then click on a draft to see its content, then click on "Resume" above the message to resume composing the draft.
Where does a draft of a reply go when I click "Save Draft" in LPL WebMail?