What is the ruling on a Muslim woman claiming to be a messenger from Allah and speaking in the name of Allah the Almighty?

A Muslim must believe that Muhammad, peace be upon him, is the Seal of the Prophets and Messengers, and that there is no prophet after him, as stated in the Holy Quran and the Prophetic Sunnah. Muslims have unanimously agreed upon this; therefore, whoever claims prophethood after him is an apostate disbeliever. The Prophet, peace be upon him, foretold the appearance of many lying impostors who would claim prophethood. Therefore, the woman who claims prophethood must be advised and warned of God's punishment. If she responds, then praise be to God. If she persists in her defiance, then she must be shunned and boycotted for her apostasy from Islam. What is happening to her may be due to satanic whisperings, in which case it is recommended to recite the Quran and Surat Al-Baqarah over her.