In fact, galaxies can recede faster than c in a universe that isn't even expanding, or even in the absence of any gravity at all. If you are in a reference frame that distant galaxies have a velocity close to c, and you undergo a sudden extreme acceleration, then galaxies that were moving in the same direction that you accelerated will recede in distance from you, and they will do it as fast as you can accelerate, and if they are already very far away, they can have their distance from you increase at rates arbitrarily higher than c.
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