My question involves landlord-tenant law in the State of: CT

Since covid-19, I have been told not to go in the mailbox. The homeowner gets the mail and distributes accordingly.
Yesterday I received an email notification from ebay that a delivery was made and I never got the package, and he insists that it was not in the box.
I told him that I want to access the mailbox as before, but he says no.
Is he legally allowed to keep me out of the mailbox?