This article examines the postcolonial politics of migration control in Mayotte, an overseas French department, and argues that these bear necropolitical consequences. It sheds light on the gendered dimension of this necropolitical power by focusing on the life and border-crossing experiences of undocumented Comorian women. Entrenched barriers to the regularization of their administrative status endanger their access to healthcare and degrade the conditions for life long-term. The constant risk of arrest and massive forced removals furthermore engender dangerous border crossings, each instance exposing the passengers to the risk of death. The article also foregrounds that these necropolitics are exacerbated as a result of the postcolonial conundrum in which Mahoran elites find themselves, with the increasing support of Black and Muslim elites for the French far-right political party.