An crazy idea for infinite scalability and n-1 redundancy:
1. A rackful of SMTP servers, running mini-qmail and qmail-qmqpc, behind
pickdns.
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.
Are there any problems with such an arrangement? Is it scalable? Is it
overkill for ~1 million users?
--
Ideas don't stay in some minds very long because they don't like
solitary confinement.
