I am using qmail+vpopmail+mysql+sqwebmail. Sqwebmail Mail filters do not work. Because vdelivermail is used by vpopmail for local delivery. I can create a .qmail-user file to overide the vdelivermail and use maildrop in the manual mode specifying the filter file and Maildir path in the command line. Is it possible to totally replace vdelivermail by maildrop so that maildrop is invoked from the .qmail-default file and thus I can use the sqwebmail filters and maildir quota.