With the threema ID
The structure of the e-mail address with the threema ID is as follows:
[Threema ID ]@threema.eCall.ch
Example: MPTJ4ZUN@threema.eCall.ch
The threema ID can be found here

The structure of the e-mail address with the threema ID is as follows:
[Threema ID ]@threema.eCall.ch
Example: MPTJ4ZUN@threema.eCall.ch
The threema ID can be found here

Updated on: 13 / 08 / 2019