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Pol Hallen
Asked: 2017-08-24 11:32:08 +0800 CST

Dovecot quota-warning.sh executed when I delete message

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plugin {
  quota_rule = *:storage=10M
  quota          = maildir:User quota
  quota_rule2     = Junk:ignore
  quota_rule3    = Trash:storage=+100M
  quota_warning = storage=50%% quota-warning 50 %u
  quota_exceeded = storage=100%% quota-exceeded 100 %u
}

plugin {
  quota_warning = storage=50%% quota-warning 50 %u
  quota_exceeded = storage=100%% quota-exceeded 100 %u
}

service quota-warning {
  executable = script /root/bin/quota-warning.sh
  user = root
  unix_listener quota-warning {
    user = vmail
    mode = 0666
  }
}

service quota-exceeded {
  executable = script /root/bin/quota-exceeded.sh
  user = root
  unix_listener quota-exceeded {
    user = vmail
    mode = 0666
  }
}

I sent an email with 8Mb (limit is 10Mb) but quota-warning executed when I delete that message (moved it to trash) instead of quota-exceeded being executed.

cat /root/bin/quota-warning.sh
touch /tmp/quota-warning-executed
cat /root/bin/quota-exceeded.sh
touch /tmp/quota-exceeded-executed
dovecot

1 Answers

  1. You have to configure quota exclusion for Junk folder and overhead for Trash:

    plugin {
  quota          = maildir:User quota
  quota_rule     = Junk:ignore
  quota_rule2    = Trash:storage=+100M
  quota_warning  = storage=50%% quota-warning 50 %u
  quota_exceeded = storage=100%% quota-exceeded 100 %u
}

    As stated by dovecot wiki, to avoid quota warning on moving to Trash,

    You can create a separate quota rule giving Trash mailbox somewhat higher quota limit (but not unlimited)

    That is intended because moving to the Trash is the two-step procedure (copying + removing). For the short time you have two copies of the same message and both of them are counted by quota plugin. If Trash have some overhead then freshly copied message do not exceed the main limit. Refer to the dovecot's wiki for further information: https://wiki.dovecot.org/Quota

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