Thanks for Your explanation. I see that Postfix community is very strong and fast :) Its good to know :)
Back to subject. We are using Red Hat distro so I`m not planning to use Postfix version higher than its in the repository. What can I say, RHEL is crap if we are talking about updates for the common packages. They are supporting latest release 2.6.6 and I will stay with this release. Of course it would be great to build new package even with version 3 but then I must support it till end. Its enterprise environment so we need to follow some rules (some times stupid...). This what I dont understand is, what exactly Postfix doing during stop command. If I good understand queue model, Postfix storing files in the queue folders. My server sending thousands of E-mails per day. If I will stop Postfix, for sure some of them will stay in the queue folders. How to migrate that part without loosing data ? Should I simply copy files with proper permissions and ownership between two servers ? Is there any commands which needs to be executed afterwards ? Thanks in advance for Your support. Zalezny On Fri, Feb 20, 2015 at 10:18 AM, DTNX Postmaster <postmas...@dtnx.net> wrote: > On 20 Feb 2015, at 09:14, Zalezny Niezalezny <zalezny.niezale...@gmail.com> > wrote: > > on one of my servers I`m planning to migrate very old Postfix 2.0 to quite > new one 2.6.6. > I migrated already all Postfix instances, so all Postfix configuration > files are already on the new machine (/etc/postfix*). Now its time to > migrate /var/spool/postfix and all other Postfix data files. > > Will it work properly if I will simply: > - stop old server > - zip all /var/spool/postfix* and /var/spool/mail/* > > - copy all /var/spool/postfix* and /var/spool/mail/* on the new one > - start all instances > > Will it work ? > > Here is written, that it will not work properly... > > http://www.postfix.org/faq.html#copying > > How to migrate Postfix data in the best way ? > > > Do note that 2.6.6 is anything but new; 2.6.6 is from 2010, and the last > legacy release of the 2.6.x series was two years ago. > > At this point, for new systems, you should be using 2.9.x as the > absolute minimum, since 2.8.x is already out as well. See the Postfix > announcements page for details; > > http://www.postfix.org/announcements.html > > As far as the migration itself; review the documentation for changes, > both to settings you have in your configuration as well as changes to > default settings, as the gap between 2.0 and whatever you move to is > quite big. Start here; > > http://www.postfix.org/postconf.5.html > > Once you have reviewed the documentation for anything you might need to > change, set it up on the new machine, and test all your assumptions > about how it should work. > > Your '/var/spool/postfix' should be empty, and there should be no need > to copy that over. How you migrate stored messages on the server > depends on how your users access their mail, which is outside the scope > of Postfix. > > In other words; move to a supported version of Postfix, and test your > migration extensively. Good luck! > > Mvg, > Joni > >
