==========
parsedmarc
==========
|Build Status|
.. image:: https://raw.githubusercontent.com/domainaware/parsedmarc/master/docs/_static/screenshots/dmarc-summary-charts.png
:alt: A screenshot of DMARC summary charts in Kibana
:align: center
:scale: 50
:target: https://raw.githubusercontent.com/domainaware/parsedmarc/master/docs/_static/screenshots/dmarc-summary-charts.png
``parsedmarc`` is a Python module and CLI utility for parsing DMARC reports.
When used with Elasticsearch and Kibana (or Splunk), it works as a self-hosted
open source alternative to commercial DMARC report processing services such
as Agari, Dmarcian, OnDMARC, ProofPoint Email Fraud Defense.
Features
========
* Parses draft and 1.0 standard aggregate/rua reports
* Parses forensic/failure/ruf reports
* Can parse reports from an inbox over IMAP
* Transparently handles gzip or zip compressed reports
* Consistent data structures
* Simple JSON and/or CSV output
* Optionally email the results
* Optionally send the results to Elasticsearch and/or Splunk, for use with premade dashboards
* Optionally send reports to Apache Kafka
Resources
=========
DMARC guides
------------
* `Demystifying DMARC`_ - A complete guide to SPF, DKIM, and DMARC
SPF and DMARC record validation
-------------------------------
If you are looking for SPF and DMARC record validation and parsing,
check out the sister project,
`checkdmarc `_.
Lookalike domains
-----------------
DMARC protects against domain spoofing, not lookalike domains. for open source
lookalike domain monitoring, check out `DomainAware `_.
CLI help
========
::
usage: cli.py [-h] [--strip-attachment-payloads] [-o OUTPUT]
[-n NAMESERVERS [NAMESERVERS ...]] [-t TIMEOUT] [-H HOST]
[-u USER] [-p PASSWORD] [--imap-port IMAP_PORT]
[--imap-skip-certificate-verification] [--imap-no-ssl]
[-r REPORTS_FOLDER] [-a ARCHIVE_FOLDER] [-d]
[-E [ELASTICSEARCH_HOST [ELASTICSEARCH_HOST ...]]]
[--elasticsearch-index-prefix ELASTICSEARCH_INDEX_PREFIX]
[--elasticsearch-index-suffix ELASTICSEARCH_INDEX_SUFFIX]
[--hec HEC] [--hec-token HEC_TOKEN] [--hec-index HEC_INDEX]
[--hec-skip-certificate-verification]
[-K [KAFKA_HOSTS [KAFKA_HOSTS ...]]]
[--kafka-aggregate-topic KAFKA_AGGREGATE_TOPIC]
[--kafka-forensic_topic KAFKA_FORENSIC_TOPIC] [--save-aggregate]
[--save-forensic] [-O OUTGOING_HOST] [-U OUTGOING_USER]
[-P OUTGOING_PASSWORD] [--outgoing-port OUTGOING_PORT]
[--outgoing-ssl OUTGOING_SSL] [-F OUTGOING_FROM]
[-T OUTGOING_TO [OUTGOING_TO ...]] [-S OUTGOING_SUBJECT]
[-A OUTGOING_ATTACHMENT] [-M OUTGOING_MESSAGE] [-w] [--test]
[-s] [--debug] [-v]
[file_path [file_path ...]]
Parses DMARC reports
positional arguments:
file_path one or more paths to aggregate or forensic report
files or emails
optional arguments:
-h, --help show this help message and exit
--strip-attachment-payloads
Remove attachment payloads from forensic report output
-o OUTPUT, --output OUTPUT
Write output files to the given directory
-n NAMESERVERS [NAMESERVERS ...], --nameservers NAMESERVERS [NAMESERVERS ...]
nameservers to query (Default is Cloudflare's
nameservers)
-t TIMEOUT, --timeout TIMEOUT
number of seconds to wait for an answer from DNS
(Default: 2.0)
-H HOST, --host HOST IMAP hostname or IP address
-u USER, --user USER IMAP user
-p PASSWORD, --password PASSWORD
IMAP password
--imap-port IMAP_PORT
IMAP port
--imap-skip-certificate-verification
Skip certificate verification for IMAP
--imap-no-ssl Do not use SSL/TLS when connecting to IMAP
-r REPORTS_FOLDER, --reports-folder REPORTS_FOLDER
The IMAP folder containing the reports (Default:
INBOX)
-a ARCHIVE_FOLDER, --archive-folder ARCHIVE_FOLDER
Specifies the IMAP folder to move messages to after
processing them (Default: Archive)
-d, --delete Delete the reports after processing them
-E [ELASTICSEARCH_HOST [ELASTICSEARCH_HOST ...]], --elasticsearch-host [ELASTICSEARCH_HOST [ELASTICSEARCH_HOST ...]]
One or more Elasticsearch hostnames or URLs to use
(e.g. localhost:9200)
--elasticsearch-index-prefix ELASTICSEARCH_INDEX_PREFIX
Prefix to add in front of the dmarc_aggregate and
dmarc_forensic Elasticsearch index names, joined by _
--elasticsearch-index-suffix ELASTICSEARCH_INDEX_SUFFIX
Append this suffix to the dmarc_aggregate and
dmarc_forensic Elasticsearch index names, joined by _
--hec HEC URL to a Splunk HTTP Event Collector (HEC)
--hec-token HEC_TOKEN
The authorization token for a Splunk HTTP Event
Collector (HEC)
--hec-index HEC_INDEX
The index to use when sending events to the Splunk
HTTP Event Collector (HEC)
--hec-skip-certificate-verification
Skip certificate verification for Splunk HEC
-K [KAFKA_HOSTS [KAFKA_HOSTS ...]], --kafka-hosts [KAFKA_HOSTS [KAFKA_HOSTS ...]]
A list of one or more Kafka hostnames or URLs
--kafka-aggregate-topic KAFKA_AGGREGATE_TOPIC
The Kafka topic to publish aggregate reports to
(Default: dmarc_aggregate)
--kafka-forensic_topic KAFKA_FORENSIC_TOPIC
The Kafka topic to publish forensic reports to
(Default: dmarc_forensic)
--save-aggregate Save aggregate reports to search indexes
--save-forensic Save forensic reports to search indexes
-O OUTGOING_HOST, --outgoing-host OUTGOING_HOST
Email the results using this host
-U OUTGOING_USER, --outgoing-user OUTGOING_USER
Email the results using this user
-P OUTGOING_PASSWORD, --outgoing-password OUTGOING_PASSWORD
Email the results using this password
--outgoing-port OUTGOING_PORT
Email the results using this port
--outgoing-ssl OUTGOING_SSL
Use SSL/TLS instead of STARTTLS (more secure, and
required by some providers, like Gmail)
-F OUTGOING_FROM, --outgoing-from OUTGOING_FROM
Email the results using this from address
-T OUTGOING_TO [OUTGOING_TO ...], --outgoing-to OUTGOING_TO [OUTGOING_TO ...]
Email the results to these addresses
-S OUTGOING_SUBJECT, --outgoing-subject OUTGOING_SUBJECT
Email the results using this subject
-A OUTGOING_ATTACHMENT, --outgoing-attachment OUTGOING_ATTACHMENT
Email the results using this filename
-M OUTGOING_MESSAGE, --outgoing-message OUTGOING_MESSAGE
Email the results using this message
-w, --watch Use an IMAP IDLE connection to process reports as they
arrive in the inbox
--test Do not move or delete IMAP messages
-s, --silent Only print errors and warnings
--debug Print debugging information
-v, --version show program's version number and exit
Sample aggregate report output
==============================
Here are the results from parsing the `example `_
report from the dmarc.org wiki. It's actually an older draft of the the 1.0
report schema standardized in
`RFC 7480 Appendix C `_.
This draft schema is still in wide use.
``parsedmarc`` produces consistent, normalized output, regardless of the report
schema.
JSON
----
.. code-block:: json
{
"xml_schema": "draft",
"report_metadata": {
"org_name": "acme.com",
"org_email": "noreply-dmarc-support@acme.com",
"org_extra_contact_info": "http://acme.com/dmarc/support",
"report_id": "9391651994964116463",
"begin_date": "2012-04-27 20:00:00",
"end_date": "2012-04-28 19:59:59",
"errors": []
},
"policy_published": {
"domain": "example.com",
"adkim": "r",
"aspf": "r",
"p": "none",
"sp": "none",
"pct": "100",
"fo": "0"
},
"records": [
{
"source": {
"ip_address": "72.150.241.94",
"country": "US",
"reverse_dns": "adsl-72-150-241-94.shv.bellsouth.net",
"base_domain": "bellsouth.net"
},
"count": 2,
"alignment": {
"spf": true,
"dkim": false,
"dmarc": true
},
"policy_evaluated": {
"disposition": "none",
"dkim": "fail",
"spf": "pass",
"policy_override_reasons": []
},
"identifiers": {
"header_from": "example.com",
"envelope_from": "example.com",
"envelope_to": null
},
"auth_results": {
"dkim": [
{
"domain": "example.com",
"selector": "none",
"result": "fail"
}
],
"spf": [
{
"domain": "example.com",
"scope": "mfrom",
"result": "pass"
}
]
}
}
]
}
CSV
---
::
xml_schema,org_name,org_email,org_extra_contact_info,report_id,begin_date,end_date,errors,domain,adkim,aspf,p,sp,pct,fo,source_ip_address,source_country,source_reverse_dns,source_base_domain,count,disposition,dkim_alignment,spf_alignment,policy_override_reasons,policy_override_comments,envelope_from,header_from,envelope_to,dkim_domains,dkim_selectors,dkim_results,spf_domains,spf_scopes,spf_results
draft,acme.com,noreply-dmarc-support@acme.com,http://acme.com/dmarc/support,9391651994964116463,2012-04-27 20:00:00,2012-04-28 19:59:59,,example.com,r,r,none,none,100,0,72.150.241.94,US,adsl-72-150-241-94.shv.bellsouth.net,bellsouth.net,2,none,fail,pass,,,example.com,example.com,,example.com,none,fail,example.com,mfrom,pass
Sample forensic report output
=============================
Thanks to Github user `xennn `_ for the anonymized
`forensic report email sample
`_.
JSON
----
.. code-block:: json
{
"feedback_type": "auth-failure",
"user_agent": "Lua/1.0",
"version": "1.0",
"original_mail_from": "sharepoint@domain.de",
"original_rcpt_to": "peter.pan@domain.de",
"arrival_date": "Mon, 01 Oct 2018 11:20:27 +0200",
"message_id": "<38.E7.30937.BD6E1BB5@ mailrelay.de>",
"authentication_results": "dmarc=fail (p=none, dis=none) header.from=domain.de",
"delivery_result": "smg-policy-action",
"auth_failure": [
"dmarc"
],
"reported_domain": "domain.de",
"arrival_date_utc": "2018-10-01 09:20:27",
"source": {
"ip_address": "10.10.10.10",
"country": null,
"reverse_dns": null,
"base_domain": null
},
"authentication_mechanisms": [],
"original_envelope_id": null,
"dkim_domain": null,
"sample_headers_only": false,
"sample": "Received: from Servernameone.domain.local (Servernameone.domain.local [10.10.10.10])\n\tby mailrelay.de (mail.DOMAIN.de) with SMTP id 38.E7.30937.BD6E1BB5; Mon, 1 Oct 2018 11:20:27 +0200 (CEST)\nDate: 01 Oct 2018 11:20:27 +0200\nMessage-ID: <38.E7.30937.BD6E1BB5@ mailrelay.de>\nTo: \nfrom: \"=?utf-8?B?SW50ZXJha3RpdmUgV2V0dGJld2VyYmVyLcOcYmVyc2ljaHQ=?=\" \nSubject: Subject\nMIME-Version: 1.0\nX-Mailer: Microsoft SharePoint Foundation 2010\nContent-Type: text/html; charset=utf-8\nContent-Transfer-Encoding: quoted-printable\n\n\n",
"parsed_sample": {
"from": {
"display_name": "Interaktive Wettbewerber-Übersicht",
"address": "sharepoint@domain.de",
"local": "sharepoint",
"domain": "domain.de"
},
"to_domains": [
"domain.de"
],
"to": [
{
"display_name": null,
"address": "peter.pan@domain.de",
"local": "peter.pan",
"domain": "domain.de"
}
],
"subject": "Subject",
"timezone": "+2",
"mime-version": "1.0",
"date": "2018-10-01 09:20:27",
"content-type": "text/html; charset=utf-8",
"x-mailer": "Microsoft SharePoint Foundation 2010",
"body": "",
"received": [
{
"from": "Servernameone.domain.local Servernameone.domain.local 10.10.10.10",
"by": "mailrelay.de mail.DOMAIN.de",
"with": "SMTP id 38.E7.30937.BD6E1BB5",
"date": "Mon, 1 Oct 2018 11:20:27 +0200 CEST",
"hop": 1,
"date_utc": "2018-10-01 09:20:27",
"delay": 0
}
],
"content-transfer-encoding": "quoted-printable",
"message-id": "<38.E7.30937.BD6E1BB5@ mailrelay.de>",
"has_defects": false,
"headers": {
"Received": "from Servernameone.domain.local (Servernameone.domain.local [10.10.10.10])\n\tby mailrelay.de (mail.DOMAIN.de) with SMTP id 38.E7.30937.BD6E1BB5; Mon, 1 Oct 2018 11:20:27 +0200 (CEST)",
"Date": "01 Oct 2018 11:20:27 +0200",
"Message-ID": "<38.E7.30937.BD6E1BB5@ mailrelay.de>",
"To": "",
"from": "\"Interaktive Wettbewerber-Übersicht\" ",
"Subject": "Subject",
"MIME-Version": "1.0",
"X-Mailer": "Microsoft SharePoint Foundation 2010",
"Content-Type": "text/html; charset=utf-8",
"Content-Transfer-Encoding": "quoted-printable"
},
"reply_to": [],
"cc": [],
"bcc": [],
"attachments": [],
"filename_safe_subject": "Subject"
}
}
CSV
---
::
feedback_type,user_agent,version,original_envelope_id,original_mail_from,original_rcpt_to,arrival_date,arrival_date_utc,subject,message_id,authentication_results,dkim_domain,source_ip_address,source_country,source_reverse_dns,source_base_domain,delivery_result,auth_failure,reported_domain,authentication_mechanisms,sample_headers_only
auth-failure,Lua/1.0,1.0,,sharepoint@domain.de,peter.pan@domain.de,"Mon, 01 Oct 2018 11:20:27 +0200",2018-10-01 09:20:27,Subject,<38.E7.30937.BD6E1BB5@ mailrelay.de>,"dmarc=fail (p=none, dis=none) header.from=domain.de",,10.10.10.10,,,,smg-policy-action,dmarc,domain.de,,False
Documentation
=============
https://domainaware.github.io/parsedmarc
Bug reports
===========
Please report bugs on the GitHub issue tracker
https://github.com/domainaware/parsedmarc/issues
.. |Build Status| image:: https://travis-ci.org/domainaware/parsedmarc.svg?branch=master
:target: https://travis-ci.org/domainaware/parsedmarc
.. _Demystifying DMARC: https://seanthegeek.net/459/demystifying-dmarc/