Trusted Sender DMARC Compliance Algorythm

Part of the Trusted Email Sender Community Initiative. Please check the wiki for other development and ways you can help.

First Published May 18, 2018

• Created by ToTheBeat.CEO
• @package zululabs/zulu-trusted-sender
• @version v1.0.2
• @files Trusted-Sender-DMARC.php (main function) call.php (calling the main function) and example.php which is a form submission.
• @author Dave Barnes (tothebeatCEO/zulu-trusted-sender) tothebeat.ceo@gmail.com
• DMARC Check for general SPOOF protection
• Used as part if the Zulu eDM Trusted Sender Program
• Returns True if implemented with > Quarantine + pct == 100pc
• Date: 10/09/2019 */

Use

Use this script for checking if a domain id DMARC compliant, that means, instructions are set so that no mail will be delivered if the DMARC check fails. Setting sp=none and p=reject will not pass this check.

This script is in action here Email Checker

DMARC Adoption & Research

For further links please see our wiki

This methodolgy can be applied to inbound email checks as well preventative checking.

Hopefully reducing the volume of email JUNK!!!

"zululabs/zulu-trusted-sender": "v1.0.2"

or run

composer require zululabs/zulu-trusted-sender

zulu-trusted-sender v0.01

Check the DMARC record for p>none and pct. Important for domain protection and anti-SPOOF emails

zulu-trusted-sender v0.02

Readme file and example.php tidied up

zulu-trusted-sender v0.03

Added composer.json & install

zulu-trusted-sender v0.04

Function to use Hetrix tools blacklist API

zulu-trusted-sender v1.02

PHP 7.0+ compatible and final example completed