Outlook and att mail
When at office I use Outlook for receiving and sending emails. But with Covid I accessed email through att.yahoo.com on my personal computer. Questions:
1. is there a setting on the internet mail to keep the emails on the server for more than 1 month? I just went to the internet and all it has is September emails.
2. If I access mail on internet does it then remove that email from coming to Outlook?
3. Supposedly I was sent email on June 17, 2020 but it is not in Outlook and I can not see earlier than September on the internet.