Email Authentication - DMARC - IMAP

DMARC

DMARC, (Domain-based  Message Authentication Reporting, & Conformance) is an open source standard, uses a concept called alignment to tie the result of two other open source standards, SPF (a published list of servers that are authorized to send email on behalf of a domain) and DKIM (a tamper-evident domain seal associated with a piece of email), to the content of an email. If not already deployed, putting a DMARC record into place for your domain will give you feedback that will allow you to troubleshoot your SPF and DKIM configurations if needed.

Adopting DMARC involves creating a DMARC record, publishing it, and using the information that is generated to gain insight and control over the way your domains are handling email. DMARC helps legitimize your email by doing two things:

• Gives feedback about the email itself, including information about SPF and/or DKIM alignment. 
• Tells email receivers (like Gmail and Yahoo) how to handle messages that fail to align with those protocols.

Generate a DMARC Record (IMAP EMAILS THAT WE HOST ONLY)

Go to https://dmarcian.com/dmarc-record-wizard/ 

Follow the wizard

Step 1 – enter the domain – do not have a / at the end of the name.

Don’t use the www. In front of the url

Step 2 – Quarantine it for further analysis

Step 3 – add this email and click Next This email address is being protected from spambots. You need JavaScript enabled to view it.

Step 4 – No, then click next.

Step 5 – Relaxed

Step 6 – No

Step 7 – 100

Then create the record – copy it onto Notepad ; it will look like this

v=DMARC1; p=quarantine; rua=mailto:This email address is being protected from spambots. You need JavaScript enabled to view it.;

ADD THIS TXT RECORD TO THE DOMAIN

Log into Blackbarn > List accounts > search for account > navigate to cPanel;

Domains > Zone Editor

Click Manage

Add Record

 Add the details and save the record