The disclosure relates to a packaging for a liquid, powdery or pasty product, comprising a first packaging part and a second packaging part which are connected to each other along a connecting area to define between them a hollow space to receive the product, wherein a channel is provided between the first packaging part and the second packaging part, which is to be opened by opening a sealing element to dispense the product from the packaging. The disclosure is characterized in that the sealing element is a sealed seam between the first packaging part and the second packaging part, which seals the channel, and that the sealed seam comprises inside the channel at least one portion which projects in a longitudinal direction of the channel. The disclosure also relates to a packaging machine for manufacturing such a packaging.