Luxemburgo, now in charge of Santos, says he will not talk to anyone until the current Campeonato Brasileiro season is over, with his club still chasing a place in the Copa Libertadores.
Luxemburgo said: "I didn't accept Iran's proposal and I am not going to talk to anybody until my contract with Santos finishes.
"This is not the first offer that I have received. Board members from Atletico Mineiro, Flamengo, Real Betis, Valencia and Fenerbahce all called me, but I rejected them all."