Download/Access old Mails via POP.
However, you can access your old mails (on old hosting server) via Outlook,
using the following settings:
Incoming/Outgoing Mail Server:
After that, outgoing server – TICK – My Outgoing requires authentication, use the same setting as for My Incoming mail server.
Incoming Server (POP3) Port: 110
Outgoing Server (SMTP) Port: 26