Williams said: “Our colleagues have worked incredibly hard to deliver these exceptional volumes at a time when many units have experienced rising levels of COVID-19 related absences, including necessary self-isolation. I want to thank them for their extraordinary dedication.”
Last month the company agreed a “landmark” deal with unions over pay.
Julie Palmer at Begbies Traynor said: "With the dispute now over, bosses at Royal Mail will be focused on looking ahead and tackling the rising competition from online retail delivery contracts which have boomed during the pandemic.”
In January, Royal Mail appointed Simon Thompson, a former Ocado man who worked on the NHS test and trace scheme, as its new chief executive on a salary of £600,000.
He replaced Rico Back, who quit after less than two years having been criticised for remaining in Switzerland during the coronavirus outbreak. The company said he was following the government’s work from home advice.