#943950 dovecot-core: "doveadm user '*'" fails when uid range set.

Package:
dovecot-core
Source:
dovecot
Description:
secure POP3/IMAP server - core files
Submitter:
Nick
Date:
2019-11-01 14:21:04 UTC
Severity:
normal
#943950#5
Date:
2019-11-01 14:09:43 UTC
From:
To:
Dovecot regards 'nobody' and 'systemd-coredump' as valid users.

   root@rolly# doveadm user '*'
   nobody
   nick
   systemd-coredump

In an attempt to remove them, I edited dovecot/conf.d/10-mail.conf to
set the range of user ids.

   first_valid_uid = 1000
   last_valid_uid = 1100

But dovecot was then unable to list users successfully.

   root@rolly# doveadm reload
   root@rolly# doveadm user '*'
   nick
   Error: User listing returned failure
   Fatal: user listing failed