On 6/24/2013 11:59 AM, Ben Johnson wrote:

Hi, everyone,

I'm attempting to configure automated quota warnings for users and have hit a snag.

The script I'm using is as follows:

---

#!/bin/sh PERCENT=$1 MAILBOX=$2 DOMAIN=$3 cat << EOF | /usr/lib/dovecot/dovecot-lda -d $USER -o "plugin/quota=dict:user::file:/var/vmail/%d/%n/.quotausage" From: postmaster@$DOMAIN Subject: Email quota warning - mailbox over $PERCENT% full [...]

When the script is triggered, here's what appears in the log:

---

Jun 24 11:16:53 host dovecot: quota-warning: Error: lda: Fatal: Unknown argument: plugin/quota=dict:user::noenforcing:file:/var/vmail/%d/%n/.quotausage Jun 24 11:16:53 host dovecot: master: Error: service(quota-warning): child 22415 returned error 64

If I paste the same on the command line, the message is delivered, as expected:

/usr/lib/dovecot/dovecot-lda -d user@example.com -o "plugin/quota=dict:user::noenforcing:file:/var/vmail/%d/%n/.quotausage" -p /tmp/test.txt

The problem seems to be that the -o switch isn't being interpreted correctly when dovecot-lda is called from within the script. -o is the correct switch, yes? From the manual at http://wiki2.dovecot.org/LDA :

-o name=value: Override a setting from dovecot.conf. You can give this parameter multiple times.

What am I missing here? Is some shell script escaping or similar required?

Thanks for any tips!

-Ben

I figured it out; I had copy/pasted part of the line

cat << EOF | /usr/lib/dovecot/dovecot-lda -d $USER -o
"plugin/quota=dict:user::file:/var/vmail/%d/%n/.quotausage"

from the documentation example and in so doing I neglected to use the correct variable name for the user/mailbox. In the documentation example, the variable is $USER, whereas I had named it $MAILBOX. This was causing the mailbox/user to be evaluated as an empty string (or null).

Everything works as expected using the correct variable name.

Oops!

-Ben