Hi List, I've been having some adventures with pre queue filtering with SpamAssassin. This has introduced me to 'milters' which look really interesting.
I've been trying to set up suggested spamassassin milter (spamass-milter) but I'm find large gaps in my basic Linux understanding.I don't mind admitting that I'm stupid and need help at times. My question is more 'unix' than 'Postfix' but someone here will know. If I have a milter set up and it creates a 'unix socket' on start up, e.g. /home/mail/email/private/samilter then defining the milter in main.cf like this (bear in mind Postfix is running chrooted) smtpd_milters = unix:/private/samilte milter_default_action = tempfail Would set up the communications 'channel' via this socket to the MILTER. I have go this basic thing clear and right in my head? The reason I ask is the milter kicks off as root:root and I get this; Jun 24 11:40:30 mx1 postfix/smtpd[3880]: warning: connect to Milter service unix:/private/samilter: Permission denied This looks to be because the milter creates the socket with ownerships root:root. A quick debug 'chown postfix:postfix' on the socket and we see this when we get an incoming connection; Jun 24 11:42:56 mx1 postfix/smtpd[3946]: connect from 11-38-132-95.pool.ukrtel.net[95.132.38.11] Jun 24 11:42:56 mx1 spamass-milter[3603]: Could not retrieve sendmail macro "i"!. Please add it to confMILTER_MACROS_ENVFROM for better spamassassin results but when an 'allowed' message runs through (having passed through CLAMAV first hence the 127.0.0.1 source) I get this; Jun 24 11:46:17 mx1 postfix/smtpd[4086]: connect from localhost[127.0.0.1] Jun 24 11:46:17 mx1 postfix/smtpd[4086]: warning: connect to Milter service unix:/private/samilter: No such file or directory Jun 24 11:46:17 mx1 postfix/smtpd[4086]: NOQUEUE: milter-reject: CONNECT from localhost[127.0.0.1]: 451 4.7.1 Service unavailable - try again later; proto=SMTP The milter stays running and other than this, there are no clues why smtpd could see the socket and then can't. My grasp of sockets and milters is weak - I've still lots to learn. I appreciate this is not 'strict Postfix' but am I missing something really really obvious ? Better still, I learn by doing, Can someone recommend a really simple pre-queue milter using a unix socket I can play with to troubleshoot my understand? The docs for the particular milter I've compiled don't appear to run past the 'readme' file in the source. AHA - my thanks as always to those much brighter than me.
