Hi,
Thanks for your reply. I do believe it’s specific to Email Subscribers because everywhere else it’s no problem to upload something. However, I checked all permissions but they seem to be alright.
Initially I tried to import the previously created export. According to your example page I need to have just the columns Email and Name. When I alter the file to make it that way, the import throws me a new error: Invalid emailaddress. Which is not the case.
I’m stuck. Any other ideas perhaps?
Best regards,
Peter.