Royal Mail’s future in doubt after delivery targets missed in every postcode

The future of the Royal Mail is in doubt after it failed to hit its delivery targets in every UK postcode this summer.

Households in postage blackspots are waiting up to two weeks for deliveries, putting the NHS under strain as missed hospital appointments become a “continuous occurrence”.

A cancer sufferer who underwent surgery last month said it was “shocking” that letters from his doctor had arrived after he was expected to attend appointments.

A source close to the company said the next three months were “make or break” for Royal Mail after it lost a tenth of its business to rivals in a year of strikes, and delivered a £750 million loss.

“It could be curtains for the company if they don’t start