Hello, the advanced content filter documentation in http://www.postfix.org/FILTER_README.html describes how an email is passed to a content filter listening on a TCP port on localhost, but how is the email passed if the content filter is listening on a unix socket?
I have tried the following in main.cf: content_filter = proxsmtp:unix:external/proxsmtpd.sock And in master.cf: proxsmtp unix - - n - 16 smtp -o smtp_send_xforward_command=yes -o disable_mime_output_conversion=yes -o smtp_generic_maps= But that fails, with the following error in the log: jeeves postfix/smtp[37436]: fatal: unknown service: external/proxsmtpd.sock/tcp The other way round, passing from the filter to postfix only using UNIX sockets, is working. Regards Christoph
