Glad you say so. I also thought you never need to use sudo -u in crontab but then I stumbled upon this post and gave it a try and surprisingly, it worked for me. From the ubuntu wiki:00 01 * * * rusty /home/rusty/rusty-list-files.shThis would run Rusty's command script as user rusty from his home directory. However, it is not usual to add commands to this file. While an experienced user should know about it, it is not recommended that you add anything to /etc/crontab. Apart from anything else, this could cause a problem if the /etc/crontab file is affected by updates! Rusty could lose his command.
So this states you don't need to add sudo -u ideed but only put the username in front..Not sure what is what and what now...Only thing I'm sure is that it's working now. I'll give it a try on my test Osticket server (which I used another ubuntu version for it). I'll keep you informed what's working there.krwouter