[clug] Single MX, multiple A records

Alex Satrapa grail at goldweb.com.au
Fri Aug 1 03:24:37 GMT 2008

On 01/08/2008, at 12:07 , Alex Osborne wrote:

> From what I've seen, DNS servers will usually return multiple A  
> records in a random order each time they're queried.  So likely  
> even if the client host always just picks the first one, if the  
> first delivery attempt happens to hit the dud server, the second or  
> third attempt will hit the working server.

That might work if DNS lookups aren't cached.


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