Spam may be unpopular but it seems to work, according to US internet advertising company DoubleClick.
More than 82 per cent of internet users surveyed by the firm said they had bought online at least once after receiving an email ad, compared with 61 per cent last year. Some 37 per cent made impulse buys, up from 20 per cent last year.
But DoubleClick, a tenth of whose business is email-based, warned vendors not to overuse the tactic saying that the annoyance of too much unsolicited email couldn't be measured but had a real economic impact.
Businesses too, will not be happy. Research from Message Labs claims that one in three UK firms have problems with spam, that 28 per cent of all emails were useless and that spam cost businesses an average of £47,000 per 100 employees per year.
Gartner recently reported that just over a third of email received in the workplace is unwanted.
Cotton seedling freezes to death as Chang'e-4 shuts down for the Moon's 14-day lunar night
Fortnite easily out-earns PUBG, Assassin's Creed Odyssey and Red Dead Redemption 2 in 2018
Meteor showers as a service will be visible for about 100 kilometres in all directions
Saturn's rings only formed in the past 100 million years, suggests analysis of Cassini space probe data
New findings contradict conventional belief that Saturn's rings were formed along with the planet about 4.5 billion years ago