A fightback has begun against the annoying but growing trend of answering work emails by smartphone after hours.
Having a smartphone means 24/7 connectivity - both a blessing and a curse - with many people responding to company emails while on the bus ride home, out at dinner or watching television with the family.
But a new law in Brazil means workers who answer work emails on their smartphones after hours now qualify for overtime.
The new piece of legislation, approved by President Dilma Rousseff last month, states that company emails to employees are now seen as direct orders.
The law may set a precedent for other countries, as the issue of over-connectivity spreads globally.
Last May, Chicago policeman Jeffrey Allen asked the city for overtime compensation and filed a class action suit.
A French IT company called Atos then announced it would stop sending company emails to its workers by 2013.
This was followed by German carmaker Volkswagen's plan to switch off BlackBerry emails after hours. Similar moves have also come from Deutsche Telekom and Henkel.
The number of mobile subscribers in Brazil exceeded 210.5 million in August last year, despite the country's population being only 195 million.
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