I have some mail accounts on a Postfix server on Ubuntu 18.04 that have the following in the .procmailrc files in their home directories:
# LOGFILE=$HOME/procmail.log
SHELL=/bin/sh
:0fw
| spamc
:0
* ^X-Spam-Status: Yes
$HOME/SPAM
:0
! xxx@xxxx.com
In /etc/procmailrc I have:
ORGMAIL=${HOME}/Maildir/
DEFAULT=${ORGMAIL}
/etc/default/spamassassin has:
OPTIONS="--create-prefs --max-children 5 --helper-home-dir"
/etc/mail/spamassassin/local.cf has:
allow_user_rules 1
Looking at the spam scoring in the postfix logs, I suspect that individual .spamassassin/user_prefs files aren't being read. There are no permissions or other errors, but custom spam scoring doesn't seem to be honoured.
How can I find out if they are or not?
EDIT: As per @A.B's comment, I have tried using inotifywait -c user_prefs to establish whether the file is being read. It says the event on the file (which happens on receiving an email) is ACCESS. That seems from the man page to be different from READ.
Why isn't spamassassin reading the file?
