Twelve postal workers received treatment for nausea, the German broadcaster Bayerischer Rundfunk reported.
Cops and firefighters were dispatched to Schweinfurt in Germany on Saturday because the package was suspected to contain a dangerous gas or a harmful substance.
Described as the "king of fruits" across Southeast Asia, the spiky fruit has a smell that's been compared to rotten meat, sewage and dead rats.
It is so smelly that one of the most prized varieties, Malaysian Musang King Durian, has never before been successfully imported to Britain -- until this decade.
The name of the spiny fruit comes from the Malay word for thorn, "duri," but the texture is soft and the flavor is sweet. The smell comes from high levels of sulphates in the fruit.
Durians are rich in nutrients, and it's believed to be excellent for improving muscle strength and blood pressure. But the sweet fruit is also is high in sugar and fat. An average 2-lb durian has close to 1,350 calories.
In the U.S., you can find Thai durian in many Asian markets and the fruit is used in everything from sweets to ice cream, as well as main dishes.
Luckily durian is a very seasonal fruit, so if you're turned off by the smell you'll encounter it only certain times of the year.