DPD mail can be tracked in a large number of countries. See the DPD international parcel tab
Registered mail can be tracked within Sweden and all the way to the recipient in several countries (e.g. Austria, Belgium, Denmark, Finland, Germany, Iceland, Ireland, Luxembourg, Netherlands, Portugal, Spain, Switzerland, and United Kingdom).
Express letters can only be tracked within Sweden, Denmark, Finland, Iceland, Portugal, Spain, United Kingdom and Ireland.
To Track & trace