Postmen have suspended mail deliveries to the high-rise flats at Berry Brow.
The action comes after a tenant hurled a razor at a postie this month.
Although police have reported general calm at Bishops Court and Holme Park Court off Woodhead Road, The Royal Mail has boycotted the council blocks for deliveries.
They had threatened similar action earlier this year but held off because behaviour improved.
The postman was not hit or injured by the razor. However, workers saw it as the final straw.
Kirklees Council and police have worked throughout summer to restore calm to the troubled twin towers.
But a Royal Mail spokesperson confirmed: "Following a number of incidents involving our postmen we have written out to residents at Bishops Court and Holme Park Court advising we have ceased deliveries."
He said Royal Mail was committed to daily services to all the residents, but added: "The health and safety of our staff is of paramount importance and we will not tolerate a situation which puts them at risk.
"This decision will be reviewed on a weekly basis but unless the situation improves we will not resume normal delivery."
Customers can collect their mail from the callers office at the flats. They will need to produce identification.
Previous incidents saw postmen hit by missiles including car parts and tin cans.
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