val requestDbUser : {dbtype : string, passwd : string option} -> unit
val requestDbTable : {dbtype : string, dbname : string} -> unit
+ val requestListMailboxes : string -> Vmail.listing
val requestNewMailbox : {domain : string, user : string,
passwd : string, mailbox : string} -> unit
val requestPasswdMailbox : {domain : string, user : string, passwd : string}