A Matlock postman died of natural causes, a coroner has ruled.
Andrew Kirk, of Gritstone Road, passed away on August 26 last year.
The 55-year-old's inquest took place at Chesterfield coroners' court on Monday.
Coroner Peter Nieto said: "Mr Kirk died at his partner's address due to cardiac failure.
"The cardiac failure was caused by Mr Kirk's pre-existing heart disease and was also contributed to by him having consumed alcohol when he had gone out the previous evening."