How can I do to connect the database postfix to the database ISPConfig? What files postfix can be changed?
Postfix uses the ispconfig database, it does not use a separate database. This is setup automatically when you install ispconfig, if you deleted some config files, then run the ispconfig updater and choose to reconfigure services during update.
When I configure ISPConfig created his new database, for example dbispconfig, and postfix previously created itself its database: servermail So now with which database uses an ISP? servermail or dbispconfig? Do I need to create a new database application ISPconfig/
On a ispconfig server, postfix uses the database dB ispconfig, a database named server mail should not exist at all. Seems as if you started with a unclean Base setup as postfix never creates a database server mail during installation, so you probably had another control panel installed before and the server was not formatted to get a clean system before you installed ispconfig. You can try to fix this but it is most likely faster to format the server and install it from scratch by following the steps from the perfect server guide.
OK thank you for the information One more question - how do I disable the imap listener in dovecot? I only want to enable the imaps listener Without ISPConfig, I changed the configuration only dovecot_master and dovecot ssl: and Now change this configuration does not work, all the time listening on port 143 (imap2)