DMARCation

Analysis of DMARC report emails. See DMARC.org for more info

Enable DMARC reporting on your domain by adding a TXT record on _dmarc for your domain. eg:

_dmarc.yourdomain.com TXT "v=DMARC1; p=reject; rua=mailto:[email protected]"

Requirements

Node >=11.4

Running

Supply a mailbox file in MBOX format with DMARC report emails in (these emails should each contain a zipped or gzipped xml filewith stats about mail delivery). Thunderbird stores its emails in this format. Outlook can export to this format with the Apple Mac Export option. Exports from Apple Mail are in this format.

To convert a Maildir format mailbox to a format DMARCation can accept, run this command from the Maildir directory

find -type f -exec echo "From " \; -exec cat {} \; > mbox

After the mails are processed and the domain names looked up some stats are displayed on the commandline and a graph is hosted at http://localhost:8000. You can drill down into days by clicking on the bars and hide/show the different stats by clicking on the lengend.

With Docker

either

./run.sh mailboxfilename

or

docker build -t dmarcation

docker run --name dmarcation -p8000:8000 --rm -v fullpathtomailboxfile:/code/mailboxfilename dmarcation mailboxfilename

Without Docker

npm install npm start -- mailboxfilename

To limit by date

From the 1st of January

./run.sh mailboxfilename 2019-01-01

Between January and March

./run.sh mailboxfilename 2019-01-01 2019-03-01