Your username and password for your email account.Microsoft Outlook installed on your computer.To access your email account through Outlook, you’ll need three things: How to Access Your Email Account Through Microsoft Outlook This is why we recommend you use IMAP unless you’ve got a good reason to use POP3. All the things you do with your email are synced if you use IMAP, so for example, if you send an email from your phone, you can look in the Sent Items folder using your tablet and the email you sent will be there. IMAP is much more suited to a modern world where we access the same email account on multiple devices, such as your phone, laptop, and tablet.