How do I enable sieve trace debugging?

[Graham Leggett]

Hi all,

I want to enable trace debugging for sieve. Most specifically, I want to know what sieve scripts are running, and whether they’re doing anything.

I cannot get anything other than dead silence from dovecot with respect to sieve.

I have tried the same as asked in this question: https://unix.stackexchange.com/questions/550618/dovecot-sieve-trace-does-not-create-a-log

In my case, the config looks like this:

  ## TRACE DEBUGGING
  # Trace debugging provides detailed insight in the operations performed by
  # the Sieve script. These settings apply to both the LDA Sieve plugin and the
  # IMAPSIEVE plugin. 
  #
  # WARNING: On a busy server, this functionality can quickly fill up the trace
  # directory with a lot of trace files. Enable this only temporarily and as
  # selective as possible.
  
  # The directory where trace files are written. Trace debugging is disabled if
  # this setting is not configured or if the directory does not exist. If the 
  # path is relative or it starts with "~/" it is interpreted relative to the
  # current user's home directory.
  sieve_trace_dir = /tmp/sieve-trace
  
  # The verbosity level of the trace messages. Trace debugging is disabled if
  # this setting is not configured. Possible values are:
  #
  #   "actions"        - Only print executed action commands, like keep,
  #                      fileinto, reject and redirect.
  #   "commands"       - Print any executed command, excluding test commands.
  #   "tests"          - Print all executed commands and performed tests.
  #   "matching"       - Print all executed commands, performed tests and the
  #                      values matched in those tests.
  sieve_trace_level = actions,command,tests,matching
  
  # Enables highly verbose debugging messages that are usually only useful for
  # developers.
  sieve_trace_debug = yes

This looks sensible, syslog would be a great place to log, but nothing related to sieve appears.

[root at gatekeeper dovecot]# doveadm log find
Looking for log files from /var/log
Debug: /var/log/maillog
Info: /var/log/maillog
Warning: /var/log/maillog
Error: /var/log/maillog
Fatal: /var/log/maillog

Regards,
Graham
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