Below are several resources for Outlook training and reference

Reference Articles:

Access email on desktop

Access email on mobile

Grant access to your calendar

Redirect or forward all emails

Set an automatic reply on a public folder

Share contacts in Outlook

Access an Outlook Shared Mailbox

Remove a Outlook Shared Mailbox

Update the Offline Address Book

View or Add Room Calenders (Resources)

View public folders

Email Automatic Replies (aka Out of Office Assistant or OOA)

Change recipients of a SendEmailsTo group

Signing Out (removing your account)

View Email Source Code (aka Internet Headers)