Gordon Messmer wrote:
> Olivier Sannier wrote:
>   
>> My courierd server is set as the MX for SomeDomain.com
>> When it's for SomeDomain.com, anything that gets delivered to it gets 
>> forwarded transparently to the same address at SomeDomain.org
>>     
>
> That's fairly simple.  Do you have access to "somedomain.org"?  I'm 
> assuming it's on another host.  The easiest thing to do would be to add 
> somedomain.com to that host, but I'm also assuming you have some reason 
> to not to that...
>   
I don't have full control over somedomain.org, but I do have the list of 
all valid email addresses. And yes, it's on another host where I cannot 
access any configuration files. I have a web interface to configure the 
valid accounts, but I'm not even aware of what's behind the scenes in 
terms of mail server.

> If you're able to get a list of the valid addresses on somedomain.org, 
> then you can:
> * add somedomain.org to esmtpacceptmailfor and hosteddomains
> * create an alias file mapping all of the somedomain.org addresses to 
> somedomain.com
>   
Sounds good. I assume the "alias" file is described in the 
documentation, I'll look it up.

> You'll also want to make arrangements on the MX for somedomain.org 
> server so that it never rejects messages from the MX from 
> somedomain.com.  If it does, your queue and postmaster account are going 
> to fill up with spam, and the server will be difficult to manage properly.
>   
How do I setup this?

> What you want is actually courier's default configuration.  Set up 
> accounts for the users that you want to be able to relay mail, and then 
> configure their mail clients to authenticate themselves (and use SSL).
>   
Fair enough, I'll do that.


Thanks for the help
Olivier

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