+ | MsgGrantDb of {dbtype : string, dbname : string}
+ (* Grant all allowed privileges on a DBMS database to the user *)
+ | MsgMysqlFixperms
+ (* Run the script to grant DROP privileges on MySQL tables to owning users *)
+ | MsgDescribe of string
+ (* Ask for a listing of all of a domain's real configuration *)
+ | MsgDescription of string
+ (* Reply to MsgDescribe *)
+ | MsgReUsers
+ (* Rerun all callbacks for cases where the set of users has changed *)
+ | MsgVmailChanged
+ (* Server tells slave that vmail user information has changed *)
+ | MsgFirewallRegen
+ (* Regenerate firewall on user machines *)
+ | MsgAptQuery of {section : string, description : string}
+ (* Answer to QAptExists query *)