A workshop foreman from Exeter has taken the title of Britain's most-spammed man, receiving an average of 44,000 unsolicited emails every day.
According to anti-spam service ClearMyMail, Colin Wells, who is a customer of Orange, gets some 16 million spam emails a year.
"On average, Mr Wells receives about 0.01 per cent of legitimate emails and his spam stats are getting bigger and bigger," said Dan Field of ClearMyMail.
A separate report has found that Tesco is the best-performing ISP where email is concerned, with 99.9 per cent of all messages sent through the company's servers being delivered within three minutes.
The report, from performance-monitoring firm Epitiro, also named Virgin Media, Orange, Pipex and Demon Internet as other ISPs that performed well in this area.
However, the worst-performing ISPs were not named in the report.