Infrared behavior of the gluon propagator: Confining or confined?

The possible infrared behavior of the gluon propagator is studied analytically, using the Schwinger-Dyson equations, in both the axial and the Landau gauge. The possibility of a gluon propagator less singular than 1/${\mathit{k}}^2$ when ${\mathit{k}}^2$→0 is investigated and found to be inconsistent, despite claims to the contrary, whereas an infrared enhanced one is consistent. The implications for confinement are discussed.