It is usually nightmere getting outbound emails working on your Linux installation however usually following below instructions should get it working for you easily. Assumptions: It is a Ubuntu/Debian 11.04 or similar desktop or server install, including other variences such as Xubuntu, Lubuntu, Kubuntu etc. You only want to send outbound emails originated from this computer. You do not have a SMTP relay for sending or receiving emails. Smarthost is used for message delivery without any need of SMTP relays. Install Postfix MTA and MailX programs sudo apt-get install postfix mailutils Configure Postfix sudo dpkg-reconfigure postfix Read given options and select OK General type of mail configuration select "Satellite System". System Mail Name "yourFQCN.com", you can select a FQDN and doesn't have to be on this server. SMTP relay host - Make it blank by deleting smtp.localdomain Root and postmaster mail recipient - enter your Ubuntu...
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