Auto-creation of INBOX.Trash added

This is required when using Roundcube to be able to delete emails

roles/ispmail-dovecot/files/10-mail.conf

@@ -79,9 +79,13 @@ namespace inbox {
   #subscriptions = yes
 
   mailbox INBOX.Junk {
-    auto = subscribe # autocreate and autosubscribe the Sent mailbox
+    auto = subscribe # autocreate and autosubscribe the Junk mailbox
     special_use = \Junk
   }
+  mailbox INBOX.Trash {
+    auto = subscribe # autocreate and autosubscribe the Trash mailbox
+    special_use = \Trash
+  }
 }
 
 # Example shared namespace configuration