The union CWU says more strikes by delivery workers at Royal Mail are to come.
Delivery workers at Bridgwater are walking out in a dispute over changes to delivery rounds and part-time working.
They claim managers are being drafted in to do their work are costing Royal Mail a fortune.
CWU say only half the mail will be delivered over the three day period because managers won't be able to cope due to lack of local knowledge.
Mail deliveries in Somerset face possible disruption with the start of a three-day strike.
Delivery workers at Bridgwater are walking out in a dispute over changes to delivery rounds and part-time working. Last month they took action over claims of management bullying.
Postal workers at a Royal Mail depot in south Bristol have voted unanimously to accept an agreement to end a long-running dispute over working conditions.
There will now be a full revision of deliveries from the Mead Street site as well as an independent review of employee and industrial relations.
Talks between Royal Mail staff and managers are expected to resume later after workers went on strike claiming the company operates a culture of bullying.
Staff at Bristol's Mead Street branch went on strike in December after becoming angry at increasing workloads.
Senior managers had to be brought in from around the country to deliver post to the south of the city.
Further talks between Royal Mail and the Communication Workers Union are due to take place today to try and prevent more strike action in Bristol. Postal workers at the Mead Street depot in Bedminster staged two walkouts before Christmas in a row over workloads.
A postman who suffered a suspected heart attack while trying to free his van from the snow on Exmoor has been named as John Bircham. He was based at Dulverton Delivery Office in West Somerset. Royal Mail have released this statement:
Postal workers in South Bristol who went on strike before Christmas could be taking action again in their dispute over working conditions. The Communications Workers Union has met staff at the Royal Mail depot in Mead Street and says more strikes will take place unless it can be resolved.
A farmer from Wiltshire has described his surprise at receiving a postcard more than a century late. The card, which has a 1912 postmark, was delivered to Keith Potter's farm by Royal Mail.
It was addressed to a Vida Doel who had once lived at the same address, but whose family left 87 years ago.
Daisy Gray reports: