Hey Kevin, I have been using qmailtoaster in a single MTA setup myself but I did administrate a dual MTA system a while ago. What you would need is two qmailtoaster setups connecting to the same data storage (DFS/NFS) and Database.
Also you need to make sure that configuration files are mounted through a DFS/NFS since they are modified every time users/domains are added and removed. You could probably use your existing MTA and add NFS shares to it for all files that have to exist on both machines. If you want to do it right though you should plan this ahead and do a proper migration using proper shared storage. I have yet not come across a bottleneck using QMT. The only obvious one for me was Spamassassin using way too much CPU. I got around that problem by running Spamdyke. It dropped spam connection on SMTP level which meant no more useless scanning required by Spamassassin. If you are worried about uptime running a cluster will help you when one mail server is down, it won't catch other SPOFs as the NFS/DFS storage or Database Backend going down. Hope this helped a bit. If anyone got anything to correct feel free to do so. It's been a while since I last touched that system and it's all from memory ;-) Cheers, Sebastian On Wed, 21 Nov 2012 15:13:42 +0800 Kevin Qiu <[email protected]> wrote: > Hello Sebastian, > > Yes, I'd like to run two mail servers. It is same as smtp.com. > > host -t mx smtp.com > smtp.com mail is handled by 10 mx1.emailsrvr.com. > smtp.com mail is handled by 20 mx2.emailsrvr.com. > > Maybe I need a DFS server to sync emails for each mail servers. > > I think I need find easy way to install them without migration. I have no > idea. > > Kevin > > On 2012-11-21, at 2:44, Sebastian Grewe <[email protected]> wrote: > > > Hey Kevin, > > > > Could you elaborate on what you are trying to accomplish? Subject would > > suggest you'd like to run two mail servers at the same time with the same > > user base while the link suggests you wish to do content scanning. > > > > Cheers, > > Sebastian > > > > On 21.11.2012, at 07:29, Kevin Qiu <[email protected]> wrote: > > > >> Hi list, > >> > >> Any help install dual MTA with QMT. > >> > >> I get this from google, but I am not sure how to use it with QMT. > >> > >> http://www.ijs.si/software/amavisd > >> > >> Kevin > >> > >> --------------------------------------------------------------------- > >> 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] > > > > > --------------------------------------------------------------------- > To unsubscribe, e-mail: [email protected] > For additional commands, e-mail: [email protected] > -- Sebastian Grewe <[email protected]> --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
