Config below. I assumed the same at first, but deliveries for other "details" work without issues. Dovecot's 'subscriptions' file is present in the maildir which seems to conflict with the mailbox lookup. Dejan ----- # 2.3.18 (9dd8408c18): /usr/local/etc/dovecot/dovecot.conf # Pigeonhole version 0.5.18 (0bc28b32) # OS: FreeBSD 13.0-RELEASE-p13 amd64 zfs auth_cache_negative_ttl = 0 auth_cache_ttl = 0 auth_failure_delay = 8 secs auth_master_user_separator = * auth_mechanisms = plain login default_client_limit = 10000 default_process_limit = 1000 default_vsz_limit = 2 G first_valid_gid = 500 imap_idle_notify_interval = 5 mins last_valid_gid = 10000 last_valid_uid = 10000 lda_mailbox_autocreate = yes lda_mailbox_autosubscribe = yes listen = :: lmtp_save_to_detail_mailbox = yes log_path = /var/log/dovecot mail_attribute_dict = file:%h/Maildir/dovecot-attributes mail_gid = 10000 mail_location = maildir:/var/mails/%Ld/%Ln/Maildir:LAYOUT=fs:INDEX=/var/mails/%Ld/%Ln/flatcurve_index mail_plugins = " zlib quota quota_clone welcome fts fts_flatcurve" mail_save_crlf = yes mail_uid = 10000 mail_vsize_bg_after_count = 100 mailbox_list_index_very_dirty_syncs = yes maildir_empty_new = yes managesieve_notify_capability = mailto managesieve_sieve_capability = fileinto reject envelope encoded-character vacation subaddress comparator-i;ascii-numeric relational regex imap4flags copy include variables body enotify environment mailbox date index ihave duplicate mime foreverypart extracttext imapsieve vnd.dovecot.imapsieve metric auth_failures { filter = event=auth_request_finished AND NOT success=yes } metric auth_success { filter = event=auth_request_finished AND success=yes } metric imap_command { filter = event=imap_command_finished group_by = cmd_name tagged_reply_state } metric mail_delivery { filter = event=mail_delivery_finished group_by = duration:exponential:1:5:10 } metric smtp_command { filter = event=smtp_server_command_finished group_by = cmd_name status_code duration:exponential:1:5:10 } namespace inbox { inbox = yes location = mailbox Archive { auto = create special_use = \Archive } mailbox Drafts { auto = subscribe special_use = \Drafts } mailbox Junk { auto = subscribe autoexpunge = 30 days special_use = \Junk } mailbox Sent { auto = subscribe special_use = \Sent } mailbox "Sent Messages" { special_use = \Sent } mailbox Trash { auto = subscribe autoexpunge = 60 days special_use = \Trash } prefix = separator = / } passdb { args = /usr/local/etc/dovecot/deny.%s deny = yes driver = passwd-file } passdb { args = /usr/local/etc/dovecot/master-users driver = passwd-file master = yes pass = yes } passdb { args = scheme=SHA512-CRYPT username_format=%u /usr/local/etc/dovecot/passwd default_fields = ssl=any-cert userdb_home=/var/mails/%Ld/%Ln userdb_uid=10000 userdb_gid=10000 driver = passwd-file } passdb { args = scheme=SHA512-CRYPT username_format=%u /usr/local/etc/dovecot/passwd-tmp default_fields = ssl=any-cert userdb_home=/var/mails/%Ld/%Ln userdb_uid=10000 userdb_gid=10000 driver = passwd-file } plugin { fts = flatcurve fts_flatcurve_commit_limit = 500 fts_flatcurve_max_term_size = 30 fts_flatcurve_min_term_size = 2 fts_flatcurve_optimize_limit = 10 fts_flatcurve_rotate_size = 5000 fts_flatcurve_rotate_time = 5000 fts_flatcurve_substring_search = no fts_languages = en es de da fi fr it nl no pt ro ru sv tr fts_tokenizer_generic = algorithm=simple fts_tokenizers = generic email-address imapsieve_mailbox1_before = file:/usr/local/etc/dovecot/sieve/report-spam.sieve imapsieve_mailbox1_causes = COPY APPEND imapsieve_mailbox1_name = Junk imapsieve_mailbox2_before = file:/usr/local/etc/dovecot/sieve/report-ham.sieve imapsieve_mailbox2_causes = COPY imapsieve_mailbox2_from = Junk imapsieve_mailbox2_name = * last_login_dict = redis:host=127.0.0.1:port=6379:db=1 quota = count:Mailbox quota quota_clone_dict = redis:host=127.0.0.1:port=6379:db=1 quota_max_mail_size = 800M quota_vsizes = yes recipient_delimiter = + sieve = file:~/sieve;active=~/.dovecot.sieve sieve_before = /usr/local/etc/dovecot/sieve/global.sieve sieve_before2 = /var/mails/%Ld/%Ln/sieve-before sieve_default_name = Master Script sieve_duplicate_default_period = 1h sieve_duplicate_max_period = 1d sieve_editheader_max_header_size = 1k sieve_global_extensions = +vnd.dovecot.pipe +vnd.dovecot.environment +editheader sieve_max_redirects = 25 sieve_pipe_bin_dir = /usr/local/etc/dovecot/sieve sieve_plugins = sieve_imapsieve sieve_extprograms sieve_quota_max_scripts = 20 sieve_redirect_envelope_from = recipient sieve_vacation_default_period = 7d sieve_vacation_dont_check_recipient = no sieve_vacation_max_period = 0 sieve_vacation_min_period = 1d sieve_vacation_send_from_recipient = yes welcome_script = welcome %d %n } protocols = imap pop3 lmtp sieve service auth-worker { client_limit = 1 process_limit = 50 service_count = 1 user = $default_internal_user } service auth { client_limit = 25000 process_limit = 1 unix_listener auth-userdb { group = $default_internal_user mode = 0666 user = $default_internal_user } user = $default_internal_user } service dict { process_limit = 6 user = $default_internal_user } service doveadm { inet_listener { port = 9999 ssl = yes } inet_listener http { port = 9010 ssl = yes } vsz_limit = 2 G } service imap-login { inet_listener imap { port = 0 } inet_listener imaps { port = 993 ssl = yes } process_min_avail = 12 service_count = 0 vsz_limit = 1 G } service imap { client_limit = 1 idle_kill = 5 mins process_limit = 10000 service_count = 1 vsz_limit = 2 G } service indexer-worker { process_limit = 25 vsz_limit = 2 G } service lmtp { inet_listener lmtp { port = 24 ssl = yes } process_limit = 500 process_min_avail = 10 vsz_limit = 2 G } service managesieve-login { client_limit = 1000 inet_listener sieve { port = 4190 ssl = yes } process_min_avail = 6 service_count = 0 vsz_limit = 512 M } service managesieve { process_limit = 1024 } service pop3-login { inet_listener pop3 { port = 0 } inet_listener pop3s { port = 995 ssl = yes } process_min_avail = 12 service_count = 0 vsz_limit = 1 G } service pop3 { client_limit = 1 idle_kill = 5 mins process_limit = 10000 service_count = 200 vsz_limit = 2 G } service stats { inet_listener http { port = 9900 } } service submission-login { inet_listener submission { port = 0 } } service welcome { executable = script /usr/local/etc/dovecot/welcome/welcome.sh unix_listener welcome { user = vmail } user = vmail } ssl = required ssl_cipher_list = ALL:!DH:!kRSA:!SRP:!kDHd:!DSS:!aNULL:!eNULL:!EXPORT:!DES:!3DES:!MD5:!PSK:!RC4:!ADH:!LOW@STRENGTH ssl_client_ca_file = /usr/local/etc/dovecot/ca-chain.cert.pem ssl_prefer_server_ciphers = yes submission_host = [::1]:9125 userdb { args = username_format=%u /usr/local/etc/dovecot/passwd default_fields = home=/var/mails/%Ld/%Ln uid=10000 gid=10000 driver = passwd-file } userdb { args = username_format=%u /usr/local/etc/dovecot/passwd-tmp default_fields = home=/var/mails/%Ld/%Ln uid=10000 gid=10000 driver = passwd-file } verbose_proctitle = yes protocol lmtp { mail_fsync = optimized mail_plugins = " zlib quota quota_clone welcome fts fts_flatcurve sieve last_login" plugin { last_login_dict = redis:host=127.0.0.1:port=6379:db=1 } } protocol !indexer-worker { mail_vsize_bg_after_count = 0 } protocol imap { imap_metadata = yes mail_max_userip_connections = 50 mail_plugins = " zlib quota quota_clone welcome fts fts_flatcurve imap_sieve last_login" } protocol sieve { mail_max_userip_connections = 20 } protocol pop3 { mail_plugins = " zlib quota quota_clone welcome fts fts_flatcurve last_login" } On 15.03.23 12:47, Aki Tuomi wrote:

...

On 15/03/2023 13:12 EET Dejan wrote:

...

lmtp_save_to_detail_mailbox = yes

Plus-delivery conflicts with existing, reserved files such as "subscriptions":

Message for kim+subscriptions@ results in:

lmtp(kim@***.com)<14493><SK7sEvaHEWSdOAAAvAYmHA>: Error: ....stat(/var/mails/***/kim/Maildir/subscriptions/tmp) failed: Not a directory

Version: 2.3.18

Hi!

Can you provide your doveconf -n output, I think this might be a misconfiguration.

Aki

Thank you for pointing this out. Changing the mailbox path is not an option anymore for us, easier to avoid this mailbox name.

Thank you!

On 15.03.23 15:07, Aki Tuomi wrote:

Documentation at https://doc.dovecot.org/configuration_manual/mail_location/

provides solution(s) for you:

SUBSCRIPTIONS

Specifies the filename used for storing subscriptions. The default is subscriptions. If you’re trying to avoid name collisions with a mailbox named subscriptions, then also consider setting MAILBOXDIR.

MAILBOXDIR

Specifies directory name under which all mailbox directories are stored. The default is empty unless otherwise described in the mailbox format pages.

Would either one be something you can consider? If you set MAILBOXDIR=mbox then your mailboxes go into ~/Maildir/mbox/

Aki