Missing Xfinity SENT emails

In early December 2025 I began using the OX app on my iPhone 16e to access my Xfinity email. I still also access my Xfinity via Webmail. My SENT emails prior to 11/09/24 have disappeared from both the OX app and Xfinity Webmail. On my iPhone 16e, the Incoming Mail Server Host Name is mail.comcast.net.

Can my sent emails be recovered?