Workers say the culture is threatening the future of the export hub.
The report found 81 percent of participants reported bullying concerns.
Adults and children have gone to extreme lengths to throw her off the game.
"I lost all the confidence. I was shattered mentally."
In May, Newshub exposed a number of Lyttelton Port Company employees' serious concerns.
The mail is believed to be related to a string of personalised attacks.
Thousands of people experience bullying every year in New Zealand.
"It is something that will be with me for the rest of my life."
An expert details the harm of not identifying better ways of working with each other.