Residents feared they would lose the service when about 16 items of mail were destroyed and four items were partly damaged, in two instances of arson on the "street receiver", on Hope Ave, near Nerin Square, after Easter.
Lake Hayes Estate Community Association members told the Queenstown Times they were "devastated" to learn New Zealand Post had a "three strikes and you're out" policy when it came to wilfully-damaged post boxes.
However, New Zealand Post head of external communications John Tulloch, of Wellington, confirmed there had been no further arson attacks on the post box.
New Zealand Post was grateful for the co-operation of the community association in spreading the word asking for extra vigilance, Mr Tulloch said.
"We have to take attacks on street receivers on a case-by-case basis. If the Lake Hayes street receiver was attacked again by arson, we'd have to review the situation.
"Ultimately, we have to make a judgement call whether the mail is secure, both for the customer and for us as a network delivering it."
Mr Tulloch said New Zealand Post was keen to maintain the facility in the estate and recognised it was a growing community which deserved a facility for posting mail.
Association chairman Kevin Burdon said residents hoped the post box would remain in place.
"We don't want to lose it. Being Easter it could have been done by visiting kids. We don't know."
