Hello Forrest, FA> Frankly, I'm also concerned about MySQL's performance under such FA> potentially harsh conditions. That remains to be seen.
MySQL isn't really the limitation - ask the people at YAHOO, who happily put more load on MySQL than dbmail for a hundred thousand workers. The new O'Reilly book, "High Performance MySQL", is written by two of them. The biggest problem is replication, when you want to scale for redundancy. Most programs (dbmail included) are designed to write to the same server they read from. There are problems when dealing with multi-master MySQL clusters, particularly if you use autoincrement fields in the tables.... which dbmail uses on just about every table. MySQL isn't unique in this problem, however. The MySQL back end on a single master server, with replication as a backup (rather than load balancing), can handle more mailboxes than the IMAP/POP and MTA servers usually will. -- Best regards, Jeff mailto:[EMAIL PROTECTED]
