  We report experimental results on the action of selected local environments
on the fidelity of the quantum teleportation protocol, taking into account
non-ideal, realistic entangled resources. Different working conditions are
theoretically identified, where a noisy protocol can be made almost insensitive
to further addition of noise. We put to test these conditions on a photonic
implementation of the quantum teleportation algorithm, where two polarization
entangled qubits act as the entangled resource and a path qubit on Alice
encodes the state to be teleported. Bob's path qubit is used to implement a
local environment, while the environment on Alice's qubit is simulated as a
weighed average of different pure states. We obtain a good agreement with the
theoretical predictions, we experimentally recreate the conditions to obtain a
noise-induced enhancement of the protocol fidelity, and we identify parameter
regions of increased insensibility to interactions with specific noisy
environments.
