Mailserver name
I want that my mailserver identify itself with another hostname (e.a. mail.domain.com or mx1.domain.com) than the server (e.a. server1.domain.com). Currently it used the server hostname, i prefer an email hostname setting, in the server configuration to specify a different hostname.
I can overwrite this setting in the postfix main.cf, but if i do an ispconfig update it wants to reconfigure the services and overwrite my settings.