Unless there is such setting somewhere in your base config, I would strongly suggest auth_username_format = %{user|lower} Aki On 01/02/2025 12:18 EET John Muccigrosso via dovecot <dovecot@dovecot.org> wrote: Boom! That was it. At the end of the day, then, here is my local.conf file: --- dovecot_config_version = 2.4.0 dovecot_storage_version = 2.4.0 default_vsz_limit = unlimited # Enable wanted protocols: protocols { imap = yes lmtp = yes } mail_home = /Users/%{user} mail_driver = maildir mail_path = ~/Maildir mail_uid = <username> mail_gid = admin default_login_user = _dovenull default_internal_user = _dovecot default_internal_group = mail # Setting limits. default_process_limit = 10 default_client_limit = 50 namespace inbox { inbox = yes separator = / } passdb passwd-file { passwd_file_path = /Users/%{user}/passwd } --- Thanks to Timo and Aki for the help. On Feb 1, 2025, at 10:16, Timo Sirainen via dovecot <dovecot@dovecot.org> wrote: On 1. Feb 2025, at 10.27, John Muccigrosso via dovecot <dovecot@dovecot.org> wrote: Fatal: setrlimit(RLIMIT_DATA, 2147483648): Invalid argument The old(?) solution doesn't work for me: default_vsz_limit = 0 It reports: doveconf: Fatal: Error in configuration file /opt/homebrew/etc/dovecot/ dovecot.conf: service(log): vsz_limit is too low Use unlimited, not 0. I guess the error message should also mention that. _______________________________________________ dovecot mailing list -- dovecot@dovecot.org To unsubscribe send an email to dovecot-leave@dovecot.org _______________________________________________ dovecot mailing list -- dovecot@dovecot.org To unsubscribe send an email to dovecot-leave@dovecot.org