The special services are part of Thailand Post's campaign to promote communications through letters and postcards.
Piyawat Mahapauraya, Thailand Post's senior executive vice president for operations, said that more Thais communicate through electronic devices, which offer greater convenience at the cost of personal touch.
"We'd like all to communicate by other means particularly letters or postcards. All should live life at slower pace, writing down their daily impressions in letters or postcards to preserve their value," he said.