/etc/dovecot/conf.d/99-mail-stack-delivery.conf is in mail-stack-delivery 1:2.2.33.2-1ubuntu4.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 | # Some general options
# Installed protocols are now auto-included by /etc/dovecot/dovecot.conf
# Since mail-stack-delivery depends on them it is more flexible to not
# explicitly list them here, but achieves the same.
# protocols = imap pop3 sieve
disable_plaintext_auth = yes
# Since 18.04 basic SSL enablement is set up by dovecot-core and configured
# in /etc/dovecot/conf.d/10-ssl.conf.
# So by default basic enablement is no more done here. The old section is kept
# as comment for reference to the old defaults.
#
# ssl = yes
# ssl_cert = </etc/dovecot/dovecot.pem
# ssl_key = </etc/dovecot/private/dovecot.pem
#
# If you keep a formerly used custom SSL enablement in this file it will (as
# before) continue to overwrite the new defaults in 10-ssl.conf as this file is
# sorted later being 99-*.conf
#
# If you choose to take the new defaults (no ssl config in this file) please
# make sure you have also chosen the package defaults for 10-ssl.conf (to enable
# it there) when dovecot-core configures. Also check that the links for cert/key
# set up there got created correctly (they would not be created if they conflict with your
# old keys done by mail-stack-delivery).
#
mail_location = maildir:~/Maildir
auth_username_chars = abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ01234567890.-_@
# IMAP configuration
protocol imap {
mail_max_userip_connections = 10
imap_client_workarounds = delay-newmail
}
# POP3 configuration
protocol pop3 {
mail_max_userip_connections = 10
pop3_client_workarounds = outlook-no-nuls oe-ns-eoh
}
# LDA configuration
protocol lda {
postmaster_address = postmaster
mail_plugins = sieve
quota_full_tempfail = yes
deliver_log_format = msgid=%m: %$
rejection_reason = Your message to <%t> was automatically rejected:%n%r
}
# Plugins configuration
plugin {
sieve=~/.dovecot.sieve
sieve_dir=~/sieve
}
# Authentication configuration
auth_mechanisms = plain login
service auth {
# Postfix smtp-auth
unix_listener /var/spool/postfix/private/dovecot-auth {
mode = 0660
user = postfix
group = postfix
}
}
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