Hello Sebastian, Thanks a lot.
I am really worried about data storage. I think NFS/DFS is slower than local hard drivers. and I feel NFS is not stable enough. DFS may be good. But I am not sure which one is good enough that can work with QMT together. So I try to find a way that mail system support Dual MTA. I guess amavisd-new can do that, but I am not sure. I got this from google. http://www.imladris.sk/howto/howto_dual_mta.html#8 Kevin On 2012-11-21, at 下午4:22, Sebastian Grewe <[email protected]> wrote: > 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] > --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
