Can you try enabling mail_debug=yes, perform a pop3 session and provide logs?
Aki
On 25.07.2018 15:53, Jakub Lánský wrote:
Here is it
# 2.3.2.1 (0719df592): /etc/dovecot/dovecot.conf # Pigeonhole version 0.5.2 (5d6d7c92) # OS: Linux 4.4.0-112-generic x86_64 Ubuntu 16.04.4 LTS # Hostname: mda22 auth_cache_negative_ttl = 2 secs auth_cache_size = 16 M auth_cache_ttl = 1 mins auth_master_user_separator = / auth_mechanisms = plain login auth_verbose = yes default_client_limit = 2000 default_process_limit = 2000 default_vsz_limit = 16894 M deliver_log_format = %m %f/%e %s -> %e %p: %$ dict { sqlquota = mysql:/etc/dovecot/dovecot-dict-sql.conf.ext sqlsieve = mysql:/etc/dovecot/dovecot-dict-sqlsieve.conf.ext } disable_plaintext_auth = no doveadm_password = # hidden, use -P to show it imap_client_workarounds = delay-newmail tb-extra-mailbox-sep tb-lsub-flags lda_mailbox_autocreate = yes lda_mailbox_autosubscribe = yes lmtp_rcpt_check_quota = yes login_log_format_elements = user=<%u> method=%m rip=%r lip=%l mpid=%e %c login_trusted_networks = 10.3.13.0/24 10.3.14.0/24 mail_gid = nogroup mail_home = /datastore/maildir/%d/%n mail_location = maildir:~/ mail_plugins = " quota mail_log notify old_stats replication" mail_uid = nobody maildir_copy_with_hardlinks = no 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 namespace inbox { inbox = yes location = mailbox Archive { auto = subscribe special_use = \Archive } mailbox Drafts { auto = subscribe special_use = \Drafts } mailbox Inbox { auto = subscribe } mailbox Junk { auto = subscribe special_use = \Junk } mailbox Sent { auto = subscribe special_use = \Sent } mailbox Trash { auto = subscribe special_use = \Trash } prefix = subscriptions = yes type = private } passdb { args = /etc/dovecot/master-users driver = passwd-file master = yes pass = yes } passdb { args = /etc/dovecot/dovecot-sql.conf.ext driver = sql } plugin { mail_log_events = delete undelete expunge copy mailbox_delete mailbox_rename mail_log_fields = box msgid from subject size mail_replica = tcp:10.3.13.51:54321 old_stats_command_min_time = 1 mins old_stats_domain_min_time = 12 hours old_stats_ip_min_time = 12 hours old_stats_memory_limit = 16 M old_stats_refresh = 30 secs old_stats_session_min_time = 15 mins old_stats_track_cmds = yes old_stats_user_min_time = 1 hours quota = dict:User quota::proxy::sqlquota quota_exceeded_message = Storage quota for this account has been exceeded, please try again later. quota_grace = 50%% quota_warning = storage=95%% quota-warning 95 %u %d size quota_warning2 = messages=95%% quota-warning 95 %u %d count recipient_delimiter = + sieve = file:/datastore/sieve/%d/%n/;active=/datastore/sieve/%d/%n/active.sieve sieve_before = dict:proxy::sqlsieve;name=before_inbox_forward;bindir=/datastore/sieve/%d/%n/ sieve_max_actions = 32 sieve_max_redirects = 50 sieve_max_script_size = 1M sieve_redirect_envelope_from = recipient sieve_user_log = /datastore/sieve/%d/%n/.sieve.log } pop3_client_workarounds = outlook-no-nuls oe-ns-eoh pop3_reuse_xuidl = yes pop3_save_uidl = yes protocols = " imap lmtp sieve pop3 sieve" replication_max_conns = 100 service aggregator { fifo_listener replication-notify-fifo { mode = 0666 user = nobody } unix_listener replication-notify { mode = 0666 user = nobody } } service auth { inet_listener { port = 12345 ssl = yes } } service dict { unix_listener dict { group = nogroup user = nobody } } service doveadm { inet_listener { port = 54321 ssl = no } } service imap-login { process_limit = 32 process_min_avail = 8 service_count = 0 } service imap { process_limit = 16384 } service lmtp { executable = lmtp -L inet_listener lmtp { port = 24 ssl = no } process_min_avail = 5 } service managesieve-login { inet_listener sieve { port = 4190 } process_min_avail = 2 service_count = 1 vsz_limit = 196 M } service managesieve { process_limit = 2048 } service old-stats { fifo_listener old-stats-mail { mode = 0666 user = nobody } inet_listener { address = 127.0.0.1 port = 24242 } } service pop3 { process_limit = 2048 } service quota-warning { executable = script /etc/dovecot/quota-warning.sh unix_listener quota-warning { mode = 0666 user = nobody } user = nobody } service replicator { process_min_avail = 1 unix_listener replicator-doveadm { mode = 0666 user = nobody } } service stats { idle_kill = 5 mins unix_listener stats-reader { group = nogroup mode = 0666 user = nobody } unix_listener stats-writer { group = nogroup mode = 0666 user = nobody } } ssl_cert = </etc/dovecot/private/mda.vshosting.cloud/fullchain.pem ssl_dh = # hidden, use -P to show it ssl_key = # hidden, use -P to show it ssl_prefer_server_ciphers = yes submission_host = 10.3.14.30:587 userdb { args = /etc/dovecot/dovecot-sql.conf.ext driver = sql } protocol lmtp { mail_plugins = " quota mail_log notify old_stats replication sieve" } protocol lda { mail_plugins = " quota mail_log notify old_stats replication sieve" } protocol imap { mail_max_userip_connections = 50 mail_plugins = " quota mail_log notify old_stats replication imap_quota imap_old_stats" } protocol sieve { managesieve_max_line_length = 65536 } protocol pop3 { mail_max_userip_connections = 50 }