The Executive of the Communication Workers Union is meeting tomorrow to decide whether to take industrial action at An Post and what form that action might take.
Among the options being considered is a one-day stoppage on Wednesday, 8 December.
The executive will also consider a novel 'no stamps' day where postal staff would accept post from customers without insisting on mail being stamped.
Other possible forms of industrial action include a Christmas overtime ban, a general overtime ban, and a total strike.
Last week, the union voted by 9 to 1 in favour of industrial action in the event that agreements at the company were breached.
The company has threatened to sue the CWU for damages if it takes industrial action, on the basis that the union has failed to exhaust agreed procedures, and that its strike notice is invalid.
