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Showing posts from June, 2010

Setting Disclaimers on your outgoing mails

In my earlier article, I showed how to set up automatic rule based archival. I had discussed email archival as one of the many compliance requirements you might have. Sometimes you may also require to configure disclaimers in your messaging system. e.g for UK Companies Act 2006, IRS Circular 230.
IndiMail provides a utility called altermime(1) to add your own disclaimers on each and every mail that goes out through your IndiMail messaging server. You can use any of the two options below to configure disclaimers
Option 1 - using /var/indimail/control/filterargs
The filterargs control file allows you to insert any filter before remote or local delivery. You can use altermime to insert a disclaimer as below
*:/var/indimail/bin/altermime --input=- \ --disclaimer=/var/indimail/control/disclaimer
If you want disclaimer to be used only for your outgoing mails then, you could do the following
*:remote:/var/indimail/bin/altermime --input=- \ --disclaimer=/var/indimail/control/disclaimer
In bot…

Email Archiving

IndiMail provides multiple options for those who want their emails archived automatically.

For easy retrieval, you can use tools like google desktop, beagle, etc
If you use IndiMail, you have two methods to achieve automatic archiving of emails
1. using environment variable EXTRAQUEUE If EXTRAQUEUE environment variable is set to any environment variable, qmail-queue will deposit an extra copy of the email which it receives for putting it in the queue. Normally you would set EXTRAQUEUE variable in any of the clients which use qmail-queue. e.g. qmail-smtpd, qmail-inject, sendmail, etc. If you have setup IndiMail as per the official instructions, you can set EXTRAQUEUE for incoming and outgoing mails as given below
% su # echo "archive@example.com" > /service/qmail-smtpd.25/variables/EXTRAQUEUE # echo "archive@example.com" > /service/qmail-smtpd.587/variables/EXTRAQUEUE # svc -d /service/qmail-smtpd.25 /service/qmail-smtpd.587 # svc -u /service/qmail-smtpd.25 /service/q…

Setting Limits for your Virtual Domain

IndiMail comes with a program vlimit(1), which allows you to set global limits for your domain. Before using vlimit, you need to enable domain limits for a domain using vmoddomain(1).

% vmoddomain -l 1 example.com

Once you have done the above, you can start using vlimit for the domain example.com

% vlimit -s example.com
Domain Expiry Date : Never Expires
Password Expiry Date : Never Expires
Max Domain Quota : -1
Max Domain Messages : -1
Default User Quota : -1
Default User Messages: -1
Max Pop Accounts : -1
Max Aliases : -1
Max Forwards : -1
Max Autoresponders : -1
Max Mailinglists : -1
GID Flags:
Flags for non postmaster accounts:
pop account : ALLOW_CREATE ALLOW_MODIFY ALLOW_DELETE
alias : ALLOW_CREATE ALLOW_MODIFY ALLOW_DELETE
forward : ALLOW_CREATE ALLOW_MODIFY ALLOW_DELETE
autoresponder : ALLOW_CREATE ALLOW_MODIFY ALLOW_DELETE
mailinglist : ALLOW_CREATE ALLOW_MODIFY ALLOW_DELETE
mailinglis…

using openLDAP for addressbook

By now I have got exhausted answering folks 'Why IndiMail does not have a shared addressbook'

IndiMail is a pure messaging platform. It does not attempt to do things which can be done better by other software like openLDAP etc.

However, things can get bit tricky setting up an address book using openLDAP. This tutorial should make it easy for you to install your own shared address book. The commands below have worked for me on my linux laptop which is proudly powered by Fedora 12. The commands / configuration may slightly vary for your Linux distro / openLDAP version.


Install openldap

% sudo yum install openldap openldap-servers openldap-clients

Configure openldap

You need to start slapd to implement openldap. slapd uses configurion
file /etc/openldap/slapd.conf

The following slapd.conf file contains the basic configurations required to establish a shared address book on a secure network, however there are no access controls yet defined; security is covered later on. The encrypted root…