sieve trace directory: error

[André Rodier]

Hello,

I am using a custom directory for sieve logs and trace and it apparently
generate an error, in some corner case.

- I have an IMAP global sieve script, that is run when appending emails
into the "Archives" folder.
- I have Thunderbird configured to archive emails by year

When archiving an email, for instance in "Archives/2018", I often have
an error message like this:

Mar 31 08:03:02 homebox dovecot[14078]: imap(andre): Error: sieve:
trace:
creat(/home/users/andre/mails/sieve/logs//andre.Archives/2018.3.20180331-080302.14235.5.trace)
failed: No such file or directory

I have this configuration (amongst) for sieve logs:
  sieve_user_log = ~/mails/sieve/logs/
  sieve_trace_dir = ~/mails/sieve/logs/
  sieve_trace_level = commands
  sieve_trace_debug = yes
  sieve_trace_addresses = yes

Did I a misconfigured something?

Thanks for your help,
André

-- 
https://github.com/progmaticltd/homebox