How to retrieve the entire mails in inbox?


New Email
My inbox used to display the entire list of mails in the Inbox whenever the folder is opened. This applies to the Sent folder as well. But recently, I can only see probably about 3 weeks of mails in both folders. The rest of the mails cannot be seen and there is also nothing in the settings that allows me to retrieve older mails in both folders. :confused:

I know the older mails are still intact because I was able to see them using the Mail program in my iMac.

Is there anything I can do on the page that will allow me to retrieve and read my older mails?

:thanks: for your help.