Mass-loss rates of SMC stars as a function of luminosity (left) and Eddington parameter (right). Blue squares are OB-type stars with surface gravity values log(g/(cm s⁻²)) ≥ 3.8 (i.e., main-sequence stars), light-blue circles are O-type stars with log(g/(cm s⁻²)) < 3.8 (i.e., O-giants and O-supergiants), red circles are B-type stars with log(g/(cm s⁻²)) < 3.8 (i.e., B-supergiants), yellow plus symbols are the post-interaction binaries recently discovered in the SMC, and cyan star symbols the Wolf-Rayet binaries. Note that for stars with mass-loss rates below log($\dot{M}$/(M_⊙ yr⁻¹)) ≲ −8.5 the wind features in the UV get very weak, introducing larger uncertainties in their mass-loss rate estimates.