CentOS 4 if I put in postfix/main.cf header_checks = regexp:/etc/postfix/header_checks and # tail -n 1 /etc/postfix/header_checks /^Received:/ HOLD it permits MailScanner to operate on incoming mails (moving them from 'hold' to 'incoming after checking) But what I lose is anything that is in the 'Subject' header and it's making me crazy # ls -al /usr/src/redhat/RPMS/noarch/ total 564 drwxr-xr-x 2 root root 4096 Mar 15 08:32 . drwxr-xr-x 8 root root 4096 Mar 9 20:16 .. -rw-r--r-- 1 root root 72812 Mar 13 21:40 perl-Archive- Zip-1.14-1.noarch.rpm -rw-r--r-- 1 root root 15001 Mar 13 21:39 perl-Convert- TNEF-0.17-1.noarch.rpm -rw-r--r-- 1 root root 64540 Mar 13 21:35 perl-IO- stringy-2.108-1.noarch.rpm -rw-r--r-- 1 root root 70642 Mar 13 21:37 perl- MailTools-1.50-1.noarch.rpm -rw-r--r-- 1 root root 240271 Mar 13 21:38 perl-MIME- tools-5.417-1.noarch.rpm -rw-r--r-- 1 root root 14320 Mar 13 21:34 perl-Net- CIDR-0.10-1.noarch.rpm -rw-r--r-- 1 root root 25151 Mar 13 21:36 perl- TimeDate-1.1301-3.noarch.rpm How do I get it to stop wiping out the header? Craig