409. Did Mary Magdalene recognize Jesus when he first appeared to her?

Yes, she recognized him.

And as they went to tell his disciples, behold, Jesus met them, saying, All hail. And they came and held him by the feet, and worshipped him. Matthew 28:9

No, she didn't recognize him.

And when she had thus said, she turned herself back, and saw Jesus standing, and knew not that it was Jesus. John 20:14

Jesus didn't appear to her; she had a vision of angels who told her that he was alive.

And when they found not his body, they came, saying, that they had also seen a vision of angels, which said that he was alive. Luke 24:23