Hey Alexandre, You can achieve your idea setting a MySQL instance, for example, in each one of your servers and also a Dovecot instance in each of them. Then you can set your `imap.mymaindomain.com` server to be a imap-frontend that performs a pre-auth step in the correct MySQL and then forwards the request to the right Dovecot instance that performs the auth again.
Something like this: - Request arrives in `imap.mymaindomain.com` - Check if you host the informed domain - Check then user domain, for example f...@a.com - Validate user credentials in MySQL.A - Forward the request to Dovecot.A Regards, João Paulo Bastos DevOps Engineer at MAV Tecnologia Belo Horizonte - Brazil +55 31 99279-7092 @joaopaulosr at OFTC/Freenode On Wed, Oct 3, 2018 at 10:42 AM Alexandre Ellert <ellertalexan...@gmail.com> wrote: > Hi, > > I've got no answer.. Can someone please help ? > > Thank you. > > Alex > > Le mar. 18 sept. 2018 à 22:55, Alexandre Ellert <ellertalexan...@gmail.com> > a écrit : > >> Hi, >> >> I'd like to achieve the following setup whit dovecot using multiple >> servers : >> - one server dedicated to all client IMAP (TLS) connections (i >> <http://mail.numeezy.com>map.mymaindomain.com, see below ) >> - each backend server has it's own local storage. no replication >> - each backend server responsible of a few domains >> - each backend server has it's own Mysql local database for user's >> passwords. >> >> ===> Server 1 : >> domains A, B and C >> >> ====> i <http://mail.numeezy.com>map.mymaindomain.com ===> Server 2 : >> domains D, E and F >> (143 TLS / 993 SSL) >> ===> Server 3 : >> domains G, H >> >> For example, if a user connects from domain E to i >> <http://mail.numeezy.com>map.mymaindomain.com, will Dovecot be able to >> use password database hosted on Server 2 ? >> >> Thank you ! >> >> Alex >> >
