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Old 2nd June 2009, 19:45
dalitso dalitso is offline
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Default Postfix cannot relay emails from other domains

I have a machine running Ubuntu server 8.04 with all the services I configured running ok. I use webmin to do my configurations and also have a dyndns hostname for the server. I can send and receive emails with postfix on the server.

I have a client machine which has Thunderbird setup to send and receive mail through the server. The problem is that, I can only relay emails from my dyndns hostname only. I cannot send other domain emails like gmail ( if I setup the from email in thunderbird as me@mydyndns.com it sends but not me@gmail.com)

Someone told me this is because by default ubuntu server is not an open relay server. Is there a way I can allow certain domains to send emails through?

Your help will be appreciated.
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