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Help anyone, I have standard SuSE8.1 setup at home and Kmail can receive mails fine, but I can only send mail with Kmail when I am logged in as root and even then I eventully get an error message some 30-40 seconds later saying that "Could not connect to host smtp.isp.xx"... But at least the mail transfer works... However, when I logged into linux under my normal (non root) user account, kmail tkeeps giving the following message... "Sending failed .... Sender address rejected: Domain not found" The email stays put. I don't understand what the problem is. I have double checked and I am sure that I identical Kmail setups under root and my normal linux user compte. I tried setting up "Mail Transfer Agent" under Network/Basic so that my outgoing mail server is smtp.isp.xx but it makes no difference. Kmail works works under root (with a warning messag) but is KO under my linux user. What gives here? These same setting work flawlessly under Windows. Is this me or my Internet Service Provider ? My ISP doesn't support Linux. Any help would be greatly appreciated! Thanks in advance James