add filter service to Postfix master.cf
postfix-add-filter [smtp service name...] [smtpd port...]
The postfix-add-filter(8) command adds an smtp service named
smtp service name and and smtpd server listening on smtpd port to
/etc/postfix/master.cf to facilitate integration of SMTP filters such as
amavisd-new or clamsmtp. The configuration is based on the upstream
recommendations for amavisd-new 2.6.0. Adminstrators should verify it is
appropriate for their requirements.
The original file is copied prior to modification and left in /etc/postfix to
make it possible to revert changes easily.
Available in the Debian package for Postfix version 2.5.3 and later.
If the given smtp service name or smtpd port already appear in the
master.cf, a message will be printed to standard out and master.cf will not be
Directory with Postfix configuration files.
The postfix-add-filter(8) command should use this, but it currently
doesn't. It is hard coded to /etc/postfix. This should be changed.