Greetings, I'm not an expert, but here's my $0.02. Sorry if this causes any FUD.
Your setup should work great until one of your customers starts getting hammered with emails. For instance, what do you expect would happen if all three of your front-ends attempted to write email to the user's directory simultaneously? The qmail daemon attempts to get a write-lock on the user's spool to write the mail files based upon the PID of the daemon and the time/date stamp. I really don't know what would happen if your front-end servers tried simultaneously to get write-lock, and failed. Certainly, the front-ends would experience an error. A better approach to this, based, again, on my non-expert opinion, might be to run the qmail-mysql patched qmail system to store all of the user's email in a SQL database that can be easily replicated. Sincerely, -- Joseph Lundgren Systems Engineer Peak Internet, LLC [EMAIL PROTECTED] -----Original Message----- From: Operations [mailto:[EMAIL PROTECTED] Sent: Saturday, November 12, 2005 5:11 PM To: [email protected] Subject: [qmailtoaster] Need Expert Opinion Hi - I am about ready to go live with a new mail server setup for our broadband service. I have used Qmail but not in this large a capacity, however, I have come up with the following configuration and all seems to be working well, so far, but I would like some second opinions, as I am sure I may have overlooked something (or I haven't thought of it or seen it happen yet). So here goes with the setup: I have three dual XEON that are not only doing dns, but are qmail-toasters. Rather than go for the priority method and set priorities for the servers, I opted for response and redundancy, so all the mail servers are all set to the same priority, whichever answers first. On the back end, I have nfs mounted /var/qmail/control, /var/qmail/users, a global spamassassin in /var/spool/spamassassin, and /etc/mail, and of course /home/vpopmail. I played with this aa little and these directories seemed to be able to share data wihtout problem (that I can see), can anyone confirm or deny? Basically, the whole point of the redunancy it to be able to sleep well at night without mail problems (for several years), as currently our one (and only) mail server is getting taxed. Also, any experience on a system of this magnitude would be well received and I would be thankful for input. --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
