Council steps in after post office closure leaves town without counter services.Read more
A buyer for the world's oldest working post office needs to be found by the end of May.
The site in Sanquhar, Dumfries and Galloway first opened in 1712 but the current owners - the 16th to run the office - are retiring.
Dr Manzoor Alam and his wife Nazra have run it since 2015.
"It's heart-breaking that we are selling this post office which has many special memories for my husband and I," said Ms Alam.
The Post Office said anyone taking over the facility had the chance to "be a part of postal history".
The post office is a popular attraction for enthusiasts from around the world.
Many of them visit to have their letters marked with the stamp saying "The World's Oldest Post Office".
The Post Office's response comes after ex-workers call for convictions to be overturned.
Responding to today's judgment against the Post Office, its chairman Tim Parker said:
While the judgment does recognise improvements we have made and that our current Horizon system is robust relative to comparable systems, it makes findings about previous versions of the system and past behaviours which further demonstrate the importance of the changes we must make in our business, particularly the ways in which we support our postmasters. Importantly, our new CEO has made clear the need to reset our relationship with postmasters and started the process to build a much better relationship with them.
Chief executive Nick Read added:
The task ahead is to improve, be clear about our direction and purpose, and to give all of those who work for and with us the guidance and support they need to help us build a Post Office fit for the future, serving in communities throughout the UK.