The SADC and the African Union prevented Rajoelina from speaking on Thursday and Friday because they refused to recognize Rajoelina's government.
Rajoelina seized power of Madagascar in March through a coup, BBC News said.
Rajoelina's name was dropped from the speakers list on Thursday after the SADC objected, Voice of America News said. He was scheduled to speak again on Friday, but the foreign minister of the Democratic Republic of Congo Alexis Mwamba stepped in.
The SADC encouraged mediation in Madagascar in order to reestablish constitutional order, VOA said. As long as it is unestablished, SADC will not recognize Rajoelina and his nation.