<div dir="ltr">Really, I'm sorry, but how does the purported sender email address tell you the source of on email communication?<div class="gmail_extra"><br><div class="gmail_quote">On Tue, Nov 22, 2016 at 2:49 PM, Paul Brooks <span dir="ltr"><<a href="mailto:paul.brooks@tridentsc.com.au" target="_blank">paul.brooks@tridentsc.com.au</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
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<div class="m_-2032241774313459379moz-cite-prefix">On 22/11/2016 3:27 PM, David Beveridge
wrote:<br>
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<blockquote type="cite">
<div dir="ltr"><a href="https://www.ag.gov.au/NationalSecurity/DataRetention/Documents/Dataset.pdf" target="_blank">https://www.ag.gov.au/<wbr>NationalSecurity/<wbr>DataRetention/Documents/<wbr>Dataset.pdf</a><br>
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<div>2. The source of a
communication </div>
<div>Identifiers of a related account, service or
device from which a communication has
been sent or attempted to be sent by means
of the relevant service.</div>
<div><br>
</div>
<div>Identifiers for the source of a
communication may include, but are not
limited to: </div>
<div>• the phone number, IMSI, IMEI from
which a call or SMS was made </div>
<div>• identifying details (such as username,
address, number) of the account,
service or device from which a text,
voice, or multi-media communication
was made (examples include email,
Voice over IP (VoIP), instant message Topic Description of
information Explanation
or video communication) </div>
<div><b>• the IP address and port number
allocated to the subscriber or device
connected to the internet at the time of
the communication, or </b></div>
<div>• any other service or device identifier
known to the provider that uniquely
identifies the source of the
communication.<b>
</b><b><font color="#ff0000">In all instances, the identifiers
retained to
identify the source of the communication
are the ones relevant to, or used in, the
operation of the particular service in
question.</font></b><br>
</div>
</div>
</blockquote>
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The question is about email application and email communications.
Retaining the addressing information at the level of 'email
application service'. The CAC and AGs have confirmed there is no
requirement to retain addressing information at a different 'layer'
than the service under question.<br>
TCP port numbers do not need to be retained for retaining
information about emails and an email service. Nor ethernet MAC
addresses or ATM cell IDs if thats the way you roll. Only
identifiers relevent to the service under consideration - e.g. email
addresses, and potentially email server DNS names if you provide
specific names to your customers as part of your service definition.<br>
<br>
Note you aren't breaking any law by voluntarily providing port
address information if you have it - nothing in the legislation says
you can't provide additional information voluntarily. But you don't
need to, for an email application service.<span class=""><br>
<br>
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