ftp upload not working

[schwarmt]

I'm trying to upload the data to an IIS ftp server (with a domain user for login).

When I try "Speichern und Testen" on the "E-Mail und FTP" tab, I get the message "Testdatei "meteohub-upload.test" wurde hochgeladen." but afterwards there is no file in the destination folder.

Is there some log file to see what's going wrong with the upload?

Regards,
Martin

[admin]

please insert "/" as target folder.

[schwarmt]

The "Inhaltsverzeichnis" was already set to "/".

Meanwhile I found the actual error: The user with which I connected had no write rights to the folder. But the Microsoft ftp server doesn't need to throw an error in that case and silently ignores this...

Thanks!