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Edit File: 90-quota.conf

##
## Quota configuration.
##

# Note that you also have to enable quota plugin in mail_plugins setting.
# <doc/wiki/Quota.txt>

##
## Quota limits
##

# Quota limits are set using "quota_rule" parameters. To get per-user quota
# limits, you can set/override them by returning "quota_rule" extra field
# from userdb. It's also possible to give mailbox-specific limits, for example
# to give additional 100 MB when saving to Trash:

plugin {
  #quota_rule = *:storage=1G
  #quota_rule2 = Trash:storage=+100M

# LDA/LMTP allows saving the last mail to bring user from under quota to
  # over quota, if the quota doesn't grow too high. Default is to allow as
  # long as quota will stay under 10% above the limit. Also allowed e.g. 10M.
  #quota_grace = 10%%

# Quota plugin can also limit the maximum accepted mail size.
  #quota_max_mail_size = 100M
}

##
## Quota warnings
##

# You can execute a given command when user exceeds a specified quota limit.
# Each quota root has separate limits. Only the command for the first
# exceeded limit is excecuted, so put the highest limit first.
# The commands are executed via script service by connecting to the named
# UNIX socket (quota-warning below).
# Note that % needs to be escaped as %%, otherwise "% " expands to empty.

plugin {
  #quota_warning = storage=95%% quota-warning 95 %u
  #quota_warning2 = storage=80%% quota-warning 80 %u
}

# Example quota-warning service. The unix listener's permissions should be
# set in a way that mail processes can connect to it. Below example assumes
# that mail processes run as vmail user. If you use mode=0666, all system users
# can generate quota warnings to anyone.
#service quota-warning {
#  executable = script /usr/local/bin/quota-warning.sh
#  user = dovecot
#  unix_listener quota-warning {
#    user = vmail
#  }
#}

##
## Quota backends
##

# Multiple backends are supported:
#   dirsize: Find and sum all the files found from mail directory.
#            Extremely SLOW with Maildir. It'll eat your CPU and disk I/O.
#   dict: Keep quota stored in dictionary (eg. SQL)
#   maildir: Maildir++ quota
#   fs: Read-only support for filesystem quota

plugin {
  #quota = dirsize:User quota
  #quota = maildir:User quota
  #quota = dict:User quota::proxy::quota
  #quota = fs:User quota
}

# Multiple quota roots are also possible, for example this gives each user
# their own 100MB quota and one shared 1GB quota within the domain:
plugin {
  #quota = dict:user::proxy::quota
  #quota2 = dict:domain:%d:proxy::quota_domain
  #quota_rule = *:storage=102400
  #quota2_rule = *:storage=1048576
}

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