Hi.
This patch supports below:
dovecot: lmtp(user@example.com): UZQmEe/QaFdyJgAARi0W+g:3: msgid=<00dc01d1cb7d$ffdc8e50$ff95aaf0$@example.com>: saved mail to INBOX: 1 Time(s)
dovecot: lmtp(user1@example.com): CF/JMklEaVckGgAApEFlZQ: sieve: msgid=<20160621134232.9B923898001F@example.com>: forwarded to <user2@example.com>
dovecot: imap(user@example.com): Logged out in=23812 out=587677
Fixed in commit c2880b872fe55f6e20cb2e5299f0c9b9bb4ae03e. Thanks for reporting.