According to Guan Yang:
>
> An crazy idea for infinite scalability and n-1 redundancy:
>
> 1. A rackful of SMTP servers, running mini-qmail and qmail-qmqpc, behind
> pickdns.
What is 'pickdns'?
--curtis
> 2. A small amount of qmail servers running qmail and qmail-qpqpd.
>
> 3. A huge, expensive NetApp.
>
> 4. A rackful of POP3 servers, running only qmail-pop3d, behind pickdns.
>
> 5. A rackful of SqWebMail servers, behind pickdns.
>
> 6. A small amount of replicated MySQL servers running authentication.
