This conversion does the following steps in fact. 1) install &fml8; firstly. In this case, add /var/spool/ml/etc/mail/aliases into $alias_maps of postfix main.cf. /var/spool/ml/etc/mail/aliases may be empty. 2) run "makefml --force newml elena" to create several files &fml8; needs. 3) convert address lists in /var/spool/ml/elena to &fml8; style. 3-1) IO::Adapter ignores a line beginning with '^#' as a comment. We should handle carefully it since "actives" file contains ^# lines as "off" address. 3-2) s=skip (off) options is ignored. It handles as "on". 3-3) m=... (digest) options is ignored. Also, "# address" is "off" in the case of &fml4; but ignored in the case of &fml8;. We should warn it ? 4) remove the corresponding entry of alias file (/var/spool/ml/etc/fml/aliases) of &fml4; and rebuild .db. Apply case 1 for all ML's. If we can stop all ML's, it is easy to remove /var/spool/ml/etc/fml/aliases of &fml4; firstly and apply case 1 steps. Please stop MTA in migration. (X-Sequence: fml-devel 389) How in half and half case. For example, site_init.ph or config.ph of &fml4; follows [fml4] push(@ACTIVE_LIST,"$DIR/recipients") if( -f "$DIR/recipients" ) ; instead in the case of &fml8; site_default_config.cf or config.cf follows: [fml8] html_archive_dir = $ml_home_dir/htdocs