[EMAIL PROTECTED] wrote:
> 
> How can I configure my Linux box to act as a fallback host for my client?  Just like 
>what the ISP does.  In case my client's SMTP server was down, all the emails under 
>his domain will fall into my SMTP server.
> My brief concept is like:
> 1.  Add the necessary MX record
> 2.  My SMTP server accepts emails from client domain.
> 3.  Periodically probe my client's SMTP server. If it is normal again, fallback all 
>the emails to its server.
> 
> Any steps that I miss, please feel free to comment.


Actually, the MX records also record a "preference" for the multiple
mail servers listed for a domain.  The one with the lowest number
(that's reachable) is used.  Look into the DNS and Bind book from
O'Reilly and Associates for more detailed information.

-- 
Steve Philp                     "The Internet is like crack 
Network Administrator            for smart people..."
Advance Packaging Corporation       --Arsenio Hall
[EMAIL PROTECTED]

Reply via email to