dovecot -n # 2.2.33.2 (d6601f4ec): /usr/local/etc/dovecot/dovecot.conf # Pigeonhole version 0.4.21 (92477967) # OS: FreeBSD 11.1-RELEASE-p1 amd64 zfs from logrotate.conf: /var/log/dovecot/dovecot.log { rotate 180 missingok nomail noolddir compress create 0600 nobody nobody postrotate # /usr/local/bin/doveadm log reopen /usr/sbin/service dovecot reload endscript } After upgrade to 2.2.33.2 (prev version was 2.2.29.1) there are only messages from sieve in /var/log/dovecot/dovecot.log like this: Jan 29 00:00:12 lda(***): Info: sieve: msgid=<20180128210012.3A9A11138B8E@***>: stored mail into mailbox 'INBOX.' (INBOX) Messages from pop3, pop3-login, imap, imap-login are absent. If i replace /usr/local/bin/doveadm log reopen with /usr/sbin/service dovecot reload all works fine. Before upgrade all worked fine.