NAME

Mail::DMARC::Report::Aggregate - aggregate report object

VERSION

version 1.20210220

DESCRIPTION

This class is used as the canonization of an aggregate report.

When reports are received, the XML is parsed into an Aggregate object, which then gets passed to the Report::Store and saved. When sending DMARC reports, data is extracted from the Store as an Aggregate object, exported as XML, and sent.

2013 Draft Description

AGGREGATE REPORTS

The report SHOULD include the following data:

o  Enough information for the report consumer to re-calculate DMARC
   disposition based on the published policy, message disposition, and
   SPF, DKIM, and identifier alignment results. {R12}

o  Data for each sender subdomain separately from mail from the
   sender's organizational domain, even if no subdomain policy is
   applied. {R13}

o  Sending and receiving domains {R17}

o  The policy requested by the Domain Owner and the policy actually
   applied (if different) {R18}

o  The number of successful authentications {R19}

o  The counts of messages based on all messages received even if
   their delivery is ultimately blocked by other filtering agents {R20}

Aggregate reports are most useful when they all cover a common time period. By contrast, correlation of these reports from multiple generators when they cover incongruous time periods is difficult or impossible. Report generators SHOULD, wherever possible, adhere to hour boundaries for the reporting period they are using. For example, starting a per-day report at 00:00; starting per-hour reports at 00:00, 01:00, 02:00; et cetera. Report Generators using a 24-hour report period are strongly encouraged to begin that period at 00:00 UTC, regardless of local timezone or time of report production, in order to facilitate correlation.

Report Structure

This is a translation of the XML report format in the 2013 Draft, converted to perl data structures.

 feedback => {
    version          => 1.0,  # decimal
    report_metadata  => {                # info about DMARC reporter
        report_id          => string
        org_name           => 'Art Farm',
        email              => 'no-reply@theartfarm.com',
        extra_contact_info => string     # min 0
        date_range         => {
            begin          => epoch time,
            end            => epoch time,
        },
        error              => string,   # min 0, max unbounded
    },
    policy_published => {
        domain =>   string
        adkim  =>   r, s
        aspf   =>   r, s
        p      =>   none, quarantine, reject
        sp     =>   none, quarantine, reject
        pct    =>   integer
        fo     =>   string
    },
    record   => [
       {  row => {
             source_ip     =>   # IPAddress
             count         =>   # integer
             policy_evaluated => {       # min=1
                disposition =>           # none, quarantine, reject
                dkim        =>           # pass, fail
                spf         =>           # pass, fail
                reason      => [         # min 0, max unbounded
                    {   type    =>    # forwarded sampled_out, trusted_forwarder, mailing_list, local_policy, other
                        comment =>    # string, min 0
                    },
                ],
              }
          },
          identifiers => {
              envelope_to    min=0
              envelope_from  min=1
              header_from    min=1
          },
          auth_results => {
             spf => [            # min 1, max unbounded
                {  domain  =>    # min 1
                   scope   =>    # min 1, helo, mfrom
                   result  =>    # min 1, none neutral pass fail softfail temperror permerror
                }
             ]                   # ( unknown -> temperror, error -> permerror )
             dkim   => [                # min 0, max unbounded
                {  domain       =>  ,   # min 1, the d= parameter in the signature
                   selector     =>  ,   # min 0, string
                   result       =>  ,   # none pass fail policy neutral temperror permerror
                   human_result =>      # min 0, string
                },
             ],
          },
      ]
   },
};

AUTHORS

• Matt Simerson <msimerson@cpan.org>

• Davide Migliavacca <shari@cpan.org>

• Marc Bradshaw <marc@marcbradshaw.net>

COPYRIGHT AND LICENSE

This software is copyright (c) 2021 by Matt Simerson.

This is free software; you can redistribute it and/or modify it under the same terms as the Perl 5 programming language system itself.