I am in troubles with compiling sieve scripts larger than 1MB. 

I see in logs following errors:

Aug 19 13:10:26 mail dovecot: lmtp(z.z@xxx.xxx)<22117><uNBGHKIIPV9lVgAA5ldI4A>: Error: sieve: autoreply: line 16818: quoted string started at line 3 is too long (longer than 1048576 bytes)
Aug 19 13:10:26 mail dovecot: lmtp(z.z@xxx.xxx)<22117><uNBGHKIIPV9lVgAA5ldI4A>: Error: sieve: autoreply: parse failed
Aug 19 13:10:26 mail dovecot: lmtp(z.z@xxx.xxx)<22117><uNBGHKIIPV9lVgAA5ldI4A>: Error: sieve: Failed to compile script `/var/vmail/xxx.xxx/z.z/sieve/autoreply.sieve'

I tried to set sieve_max_script_size = 2M or 0 (unlimited). I also tried to run "sievec -o sieve_max_script_size=2M /var/vmail/xxx.xxx/z.z/sieve/autoreply.sieve" but the result is still same. Below is my config.
Can you please advice where can be the problem?


# 2.3.10.1 (a3d0e1171): /etc/dovecot/dovecot.conf
# Pigeonhole version 0.5.10 (67bf5bd7)
# OS: Linux 5.4.44-2-pve x86_64 Debian 10.4 
# Hostname: mail.xxx.xxx
auth_cache_size = 2 M
auth_cache_ttl = 5 mins
auth_master_user_separator = *
auth_mechanisms = plain login
auth_policy_check_before_auth = no
auth_policy_hash_nonce = # hidden, use -P to show it
auth_policy_report_after_auth = no
auth_policy_server_timeout_msecs = 1500
auth_policy_server_url = http://127.0.0.1:8090/
dict {
  acl = pgsql:/etc/dovecot/dovecot-dict-sql.conf.ext
  quota = pgsql:/etc/dovecot/dovecot-dict-sql.conf.ext
}
disable_plaintext_auth = no
imap_client_workarounds = delay-newmail
imap_id_log = *
imap_id_retain = yes
login_trusted_networks = 127.0.0.0/8
mail_gid = 2000
mail_home = /var/vmail/%d/%n
mail_location = mdbox:~/mdbox:ALT=/var/vmail-archive/%d/%n/mdbox
mail_max_userip_connections = 60
mail_plugins = acl zlib fts quota
mail_uid = 2000
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 vacation-seconds editheader imapsieve vnd.dovecot.imapsieve
mdbox_rotate_interval = 1 days
mdbox_rotate_size = 16 M
namespace {
  inbox = yes
  location = 
  mailbox "Deleted Items" {
    auto = no
    special_use = \Trash
  }
  mailbox "Deleted Messages" {
    auto = no
    special_use = \Trash
  }
  mailbox Drafts {
    auto = no
    special_use = \Drafts
  }
  mailbox Junk {
    auto = subscribe
    special_use = \Junk
  }
  mailbox "Junk E-mail" {
    auto = no
    special_use = \Junk
  }
  mailbox Sent {
    auto = subscribe
    special_use = \Sent
  }
  mailbox "Sent Items" {
    auto = no
    special_use = \Sent
  }
  mailbox "Sent Messages" {
    auto = no
    special_use = \Sent
  }
  mailbox Spam {
    auto = no
    special_use = \Junk
  }
  mailbox Trash {
    special_use = \Trash
  }
  mailbox virtual/All {
    auto = no
    special_use = \All
  }
  prefix = 
  separator = /
  type = private
}
namespace {
  inbox = no
  list = children
  location = mdbox:/var/vmail/%%d/%%n/mdbox:ALT=/var/vmail-archive/%%d/%%n/mdbox
  prefix = shared/%%u/
  separator = /
  subscriptions = no
  type = shared
}
passdb {
  args = /etc/dovecot/dovecot-ldap.conf
  driver = ldap
}
passdb {
  args = /etc/dovecot/masters.db
  driver = passwd-file
  master = yes
  pass = yes
}
plugin {
  acl = vfile
  acl_shared_dict = proxy::acl
  imapsieve_mailbox1_before = file:/var/vmail/sieve/report-spam.sieve
  imapsieve_mailbox1_causes = COPY
  imapsieve_mailbox1_name = Spam
  imapsieve_mailbox2_before = file:/var/vmail/sieve/report-ham.sieve
  imapsieve_mailbox2_causes = COPY
  imapsieve_mailbox2_from = Spam
  imapsieve_mailbox2_name = *
  imapsieve_mailbox3_before = file:/var/vmail/sieve/report-spam.sieve
  imapsieve_mailbox3_causes = COPY
  imapsieve_mailbox3_name = Junk
  imapsieve_mailbox4_before = file:/var/vmail/sieve/report-ham.sieve
  imapsieve_mailbox4_causes = COPY
  imapsieve_mailbox4_from = Junk
  imapsieve_mailbox4_name = *
  mailbox_alias_new = Sent Messages
  mailbox_alias_new2 = Sent Items
  mailbox_alias_new3 = Deleted Items
  mailbox_alias_old = Sent
  mailbox_alias_old2 = Sent
  mailbox_alias_old3 = Trash
  quota = dict:User quota::proxy::quota
  quota_grace = 10%%
  quota_rule2 = Trash:ignore
  quota_rule3 = Junk:ignore
  quota_warning = storage=80%% quota-warning 90 %u
  quota_warning2 = storage=85%% quota-warning 95 %u
  quota_warning3 = storage=95%% quota-warning 105 %u
  sieve = /var/vmail/%d/%n/sieve/.sieve
  sieve_after = /var/vmail/%d/%n/sieve/autoreply.sieve
  sieve_before = /var/vmail/sieve/global.sieve
  sieve_dir = /var/vmail/%d/%n/sieve
  sieve_extensions = +editheader +vacation-seconds
  sieve_global_dir = /var/vmail/sieve/
  sieve_global_extensions = +vnd.dovecot.pipe +vnd.dovecot.environment
  sieve_max_redirects = 20
  sieve_max_script_size = 2M
  sieve_pipe_bin_dir = /usr/lib/dovecot
  sieve_plugins = sieve_imapsieve sieve_extprograms
  sieve_vacation_send_from_recipient = yes
}
protocols = imap sieve lmtp pop3
service auth-worker {
  unix_listener auth-worker {
    user = vmail
  }
  user = $default_internal_user
}
service auth {
  unix_listener /var/spool/postfix/private/auth {
    group = postfix
    mode = 0660
    user = postfix
  }
  unix_listener auth-userdb {
    mode = 0600
    user = vmail
  }
  user = vmail
}
service dict {
  unix_listener dict {
    mode = 0600
    user = vmail
  }
}
service imap-login {
  process_min_avail = 10
  service_count = 0
  vsz_limit = 512 M
}
service imap {
  executable = imap
  process_limit = 3500
  unix_listener imap-master {
    user = $default_internal_user
  }
  vsz_limit = 2 G
}
service lmtp {
  unix_listener /var/spool/postfix/private/dovecot-lmtp {
    group = postfix
    mode = 0600
    user = postfix
  }
}
service managesieve-login {
  inet_listener sieve {
    port = 4190
  }
  process_min_avail = 0
  service_count = 1
  vsz_limit = 64 M
}
service managesieve {
  process_limit = 400
}
service pop3-login {
  process_min_avail = 3
  service_count = 0
  vsz_limit = 320 M
}
service pop3 {
  process_limit = 200
  vsz_limit = 320 M
}
service quota-warning {
  executable = script /etc/dovecot/quota_warning.sh
  unix_listener quota-warning {
    mode = 0666
    user = vmail
  }
  user = vmail
}
ssl_cert = </etc/ssl/private/multi.z-technics.cz.dovecot.pem
ssl_dh = # hidden, use -P to show it
ssl_key = # hidden, use -P to show it
stats_writer_socket_path = 
userdb {
  args = /etc/dovecot/dovecot-ldap.conf
  driver = ldap
}
protocol sieve {
  managesieve_implementation_string = Dovecot Pigeonhole
  managesieve_max_compile_errors = 5
}
protocol imap {
  mail_plugins = quota imap_quota fts mailbox_alias imap_acl acl imap_zlib imap_sieve
}
protocol lda {
  mail_fsync = optimized
}
protocol lmtp {
  mail_fsync = optimized
  mail_plugins = quota sieve acl
}