Emails not showing up in inbox folder

Emails not showing up in inbox folder

I am trying to archive some emails in outlook, but emails in outlook only go back 6 months.  When I log into my zoho mail, I find that the inbox only goes back 6 months, but if i click "all Messages" under the "view" heading I can see all the messages.  what is going on here?  how can I view all my emails in my inbox so they can be archived in outlook?