The area's Senedd Member has questioned Royal Mail about the future of the public counter at its Llangollen sorting office.
And an official of the organisation has admitted the counter is part of a general review of similar facilities which follows a drop in footfall.
Clwyd South MS Ken Skates recently received a query from a constituent which said: "It has been brought to my attention (in confidence ) that there is a possibility that the Royal Mail plan on closing the Caller Office Facility based in the sorting office in Berwyn Street, Llangollen.
"Obviously if this is indeed the case then that in effect would mean that the residents having received a ‘non delivery' would no longer be able to collect their parcels and would be expected to travel to Wrexham. This would include the Ceiriog Valley, Llangollen Rural, Llantysilio and Pentredwr.
"Could I please ask that you make enquiries with the Royal Mail for clarification as to what their intentions are."
In response to an enquiry from Mr Skates, a senior Royal Mail official replied: "Royal Mail has commenced a review of the Customer Service Points (CSPs) to determine the right number of sites as it steps up its drive to ensure more first-time deliveries with higher level of convenience for customers.
"The review comes as customer footfall has fallen by around 47% at Royal Mail CSPs compared to pre-pandemic levels. This drop reflects customers' growing reluctance to travel to CSPs to collect missed parcels, as well as their growing preference for free redeliveries to their doorstep.
"Royal Mail has additionally introduced a range of new delivery options designed to further improve its first-time delivery rates.
"These initiatives include a scheme where postmen and postwomen are able to leave parcels in what they consider to be a safe place, as well as 'in-flight' redirections through either the Royal Mail app or www.royalmail.com.
"Research suggests 90% of customers prefer delivery to a safe place or neighbour, or a redelivery option if they are not home to accept a delivery."