Talks between An Post management and the Communications Workers' Union (CWU) about the future of the company are resuming today at the Labour Relations Commission (LRC).
The talks between the two sides were adjourned last night without agreement. One of the outstanding issues is over the managing of the additional mail by hiring an additional 200 casual workers to help clear the backlog.
An Post said the company's service recovery plan is designed to return services to normal in "as short a time possible as well as in the most cost-effective manner".
However, Mr Seán McDonagh, a national officer with the CWU, accused An Post of "reneging on all established agreements and by imposing a new delivery regime which will effectively delay full restoration of the delivery service until April 26th at the earliest".
He added that he would not be "bullied into accepting a crazy new postal delivery regime that would further tarnish the reputation of the system and damage the business in the long term".