On Tue, Jul 10, 2012 at 12:45:34AM +0200, Jeroen Geilman wrote: > I would probably opt to make it a fully controllable process by > first queueing and re-injecting it into a second listener or postfix > instance by utilizing ${second-smtpd}_recipient_limit = 1
Right idea, wrong implementation. A better solution is to set the <transport>_destination_recipient = 1 where <transport> is the name of the dedicated transport used to feed messages into the content_filter. For example: main.cf: content_filter = cf_smtp cf_smtp_destination_recipient_limit = 1 master.cf: cf_smtp unix ... smtp -- Viktor.