Sending, receiving, and organizing email in Outlook.com
Hello Higgins, Timothy D. {PEP},
Just to clarify, are you using Outlook.com in a web browser, or the new Outlook app for Windows?
I ask because new Outlook has an offline setting that can limit locally saved email to 7, 30, 90, or 180 days.
If you are using new Outlook, please check:
Settings > General > Offline > Days of email to save
If you are actually using Outlook.com in a browser, could you confirm whether emails older than 90 days are completely missing, or whether you simply cannot find them through the current view/search?
That distinction should help narrow down where the limitation is coming from.