Implementing DomainKeys/DKIM on Mac OS X 10.5.x/10.4.x

Short Description
This tutorial has been tested on a standard Mac OS X 10.5.x/. 10.4.x Server installation. If you have already tinkered with …

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Content
Implementing
DomainKeys/DKIM
on
Mac OS X 10.5.x/10.4.x
1. - Introduction
2. - Requirements
3. - Getting and installing the required components
4. - Getting and installing DomainKeys/DKIM components
5. - Using Mail::DKIM to verify incoming messages
6. - Using dkimproxy to sign outgoing messages
7. - Caveats - READ this chapter!
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damage that may occur from the use of any information found here
or found on links followed from this document. The author(s)
will take credit for the good stuff though.
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the respective companies or individuals.
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1. - IntroductionThe purpose of this document is to provide instructions on how
to implement DomainKeys/DKIM on OS X 10.5.x and OS X 10.4.x
Server.
You will not find many explanations as to why something is done
one way or the other. Also, I will not discuss whether
DomainKeys/DKIM are useful or not. This is a decision you must
make for yourself. There are enough discussions about this
available on the internet.
DomainKeys/DKIM functionality has two sides to it. First, it is
used to verify if a sender domain is using DomainKeys/DKIM
signatures and if the incoming mail was correctly signed.
Second, it allows you to sign outgoing messages with a digital
signature for recipients to verify your mail server.
DomainKeys/DKIM functionality depends on several Perl modules
and scripts to be installed.
Verification of signatures is done through amavisd-new/
SpamAssassin. This allows to integrate as closely as possible
with the existing components on OS X 10.4.x server.
Signing is handled by an external content-filter which will be
integrated with Postfix.
NOTE: Although not mandatory, for Mac OS X 10.4.x it is strongly
recommended you first update amavisd-new and SpamAssassin. This…