A mailwoman wearing a protective mask is seen in Venice on the second day of an unprecedented lockdown across of all Italy imposed to slow the outbreak of coronavirus, in Venice, Italy, March 11, 2020. REUTERS/Manuel Silvestri

A mailwoman of Swiss mail operator Schweizerische Post rides her electro-powered trike on a snow-covered street in Zurich, Switzerland, March 1, 2018. REUTERS/Arnd Wiegmann

A postwoman standing beside a scooter uses a device in front of the headquarters of Poste Italiane in Milan, Italy, October 22, 2015. Poste Italiane is expected to report Q3 results this week. REUTERS/Stefano Rellandini/FilesGLOBAL BUSINESS WEEK AHEAD PACKAGE - SEARCH "BUSINESS WEEK AHEAD NOV 9" FOR ALL IMAGES

Deutsche Post DHL postwoman Andrea Bunar delivers post using a traditional boat in the Spreewald village of Lehede, April 11, 2014. Bunar is now Germany's only postwoman to deliver the mail by boat from April until October. REUTERS/Axel Schmidt (GERMANY - Tags: TRANSPORT SOCIETY BUSINESS)

Deutsche Post DHL postwoman Andrea Bunar punts to deliver post using a traditional boat in the Spreewald village of Lehede, April 11, 2014. Bunar is now Germany's only postwoman to deliver the mail by boat from April until October. REUTERS/Axel Schmidt (GERMANY - Tags: TRANSPORT SOCIETY BUSINESS)

A postwoman of the German postal and logistics group Deutsche Post sorts mail at a sorting office in Berlin's Mitte district, December 4, 2013. Deutsche Post, the world's number one postal and logistics group, transported around 18 billion letters in 2012. REUTERS/Fabrizio Bensch (GERMANY - Tags: BUSINESS EMPLOYMENT)

Sabine Standke (R), 32-year-old postwoman of the German postal and logistics group Deutsche Post, drops a letter into a mailbox during her delivery tour in Berlin's Mitte district, December 4, 2013. Deutsche Post, the world's number one postal and logistics group, transported around 18 billion letters in 2012. REUTERS/Fabrizio Bensch (GERMANY - Tags: BUSINESS EMPLOYMENT)

Sabine Standke, 32-year-old postwoman of the German postal and logistics group Deutsche Post, counts letters at a sorting office in Berlin's Mitte district, December 4, 2013. Deutsche Post, the world's number one postal and logistics group, transported around 18 billion letters in 2012. REUTERS/Fabrizio Bensch (GERMANY - Tags: BUSINESS EMPLOYMENT)

Sabine Standke (R), 32-year-old postwoman of the German postal and logistics group Deutsche Post, hands a parcel to a resident during her delivery tour in Berlin's Mitte district, December 4, 2013. Deutsche Post, the world's number one postal and logistics group transported around 18 billion letters in 2012. REUTERS/Fabrizio Bensch (GERMANY - Tags: BUSINESS EMPLOYMENT)

Sabine Standke, 32-year-old postwoman of the German postal and logistics group Deutsche Post, rides a bicycle during her delivery tour in Berlin's Mitte district, December 4, 2013. Deutsche Post, the world's number one postal and logistics group transported around 18 billion letters in 2012. REUTERS/Fabrizio Bensch (GERMANY - Tags: BUSINESS EMPLOYMENT TRANSPORT)

Postal clerk Arin Vickers sorts mail for delivery in the U.S. post office at RAF Alconbury, near Huntingdon, central England June 11, 2013. The U.S. Air Force controlled RAF Alconbury opened in 1938 and remains a small pocket of American life nestled in the heart of the English countryside. Picture taken June 11, 2013. REUTERS/Suzanne Plunkett (BRITAIN - Tags: SOCIETY MILITARY TPX IMAGES OF THE DAY)

United States Postal Service Letter Carrier Lakesha Dortch-Hardy delivers mail in Chicago, November 29, 2012. REUTERS/John Gress (UNITED STATES - Tags: SOCIETY BUSINESS)

United States Postal Service (USPS) Letter Carrier Lakesha Dortch-Hardy sorts mail at the Lincoln Park carriers annex in Chicago, November 29, 2012. The USPS, which relies on the sale of stamps and other products rather than taxpayer dollars, has been grappling for years with high costs and tumbling mail volumes as consumers communicate more online. REUTERS/John Gress (UNITED STATES - Tags: SOCIETY BUSINESS EMPLOYMENT)

Jutta Pudenz, a 56 years-old German postwoman, delivers mail in the 'Spreewald' canals between the east German towns of Luebbenau and Lehde, April 6, 2009. For more than 100 years the citizens of this area receive their mail by boat and Pudenz delivers around 600 mails per week and has driven around 1000 kilometres at the end of the season in her post boat. REUTERS/Hannibal Hanschke (GERMANY SOCIETY)

Jutta Pudenz, a 56 years-old German postwoman, delivers mail in the 'Spreewald' canals between the east German towns of Luebbenau and Lehde, April 6, 2009. For more than 100 years the citizens of this area receive their mail by boat and Pudenz delivers around 600 mails per week and has driven around 1000 kilometres at the end of the season in her post boat. REUTERS/Hannibal Hanschke (GERMANY SOCIETY)

A postwoman cycles in front of the headquarters of German postal and logistics group Deutsche Post AG in Bonn, November 10, 2008. Some 40,000 Deutsche Post in the United States are at risk as the group steps up plans to turn round its loss-making DHL express delivery company there, a German newspaper report said on Sunday. REUTERS/Ina Fassbender (GERMANY)

Jutta Pudenz, a 55 years-old German postwoman, delivers mail in the 'Spreewald' canals between the east German towns of Luebbenau and Lehde, April 4, 2008. For more than 100 years the citizens of this area receive their mail by boat and Pudenz delivers around 600 mails per week and has driven around 1000 kilometres at the end of the season in her post boat. REUTERS/Tobias Schwarz (GERMANY)

Jutta Pudenz, a 55 years-old German postwoman, delivers mail in the 'Spreewald' canals between the east German towns of Luebbenau and Lehde, April 4, 2008. For more than 100 years the citizens of this area receive their mail by boat and Pudenz delivers around 600 mails per week and has driven around 1000 kilometres at the end of the season in her post boat. REUTERS/Tobias Schwarz (GERMANY)