Okay, now it works. But I do not understand why. What I did:
k2g_list_raw.txt contains these informations after the creation:
# testuser, K: 43, size: 9.98 MB, active: yes
#testuser@domain.de,6DCE3E5554BA4563B8F5C9AF8A4F1013,1
testuser@domain.de,testuser,0
After I changed it to this and runs the kopano2grommunio.sh script again it works:
# testuser, K: 43, size: 9.98 MB, active: yes
testuser@domain.de,6DCE3E5554BA4563B8F5C9AF8A4F1013,1
#testuser@domain.de,testuser,0
That´s really interesting and I do not understand it at these moment. Any hints for investigating?