Scan Your Inbox
Try to scan every mail and determine those that contain references for future meetings and agendas, emails that need to follow up, and email confirmations and notifications.
Relocate emails
Once you have determined each one, try to categorize and relocate them. Your emails that represent a future task can be dragged to your outlook or notes.
Delete unnecessary emails
Delete unnecessary and out dated emails.
Make sure to a lot at least 15 minutes every day to relocate your emails. Make sure to use your note or to-do list software instead of your mailbox.