Captain Tom Moore, who has raised more than £27m for the NHS by completing 100 laps of his garden, has been sent more than 25,000 birthday cards ahead of his 100th birthday on 30 April.
Stephen James, manager at the South Midlands Mail Centre, said: “None of the team have ever known one person receive so much mail.”
Meanwhile, British Formula 1 driver Lando Norris has spoken to Capt Moore via a video chat and offered him a tour around the McLaren F1 factory.
“Nothing would give me more pleasure – it would be absolutely phenomenal to go around McLaren because I’ve always been a McLaren fan and still am,” said Capt Moore.
Norris, 20, added: “I want to say a big congratulations for everything you have achieved – it’s my honour to speak to you.”