Section guide

DMARC Generator

DMARC Generator

DMARC or Domain-based Message Authentication Reporting and Conformance, is a protocol that helps domain owners protect their domains from unauthorized use, or, domain spoofing.

DMARC generator fields

Required DMARC setting

Domain

Domain name to generate the DMARC Record for

Domain policy type

Policy that defines how an ISP handles messages that fail SPF and DKIM checks for your domain. If you are unsure if your domain is authenticating all emails choose 'None'. You will still receive reports. if unsure, choose "None". Reports will still be generated.
select

Optional DMARC setting

Sub-Domain Policy Type

Policy that defines how an ISP handles messages that fail SPF and DKIM checks for your sub-domain. If you are unsure if your sub-domain is authenticating all emails choose 'None'. You will still receive reports. if unsure, choose "None". Reports will still be generated.
select

Aggregate Email (RUA)

Email Address to receive reports of failed SPF or DKIM checks (DMARC) for your domain.

Forensic Email (RUF)

The email where you want to receive sample messages that are failing SPF and DKIM checks (DMARC) for your domain.

Report Format

You can choose to have reports sent in one of two different formats, 'iodef' Incident Object Description Exchange Format or 'afrf' Authentication Failure Reporting Format.
select

Reporting Interval

The time in seconds that aggregate reports should be generated should be between 1 and 4294967295. 86400 seconds repersents 1 day.

Percentage

The percent of the messages from your domain you want to ISPs to check, we recommend 100%
%

DKIM Identifier Alignment

If you emails adhere to strict DKIM, you can set to "Strict". We recommend leaving it as relaxed. To test you DKIM Indentifier alignment, create an account at zerobounce.net and purchase the Email Tools Package.
select

SPF Identifier Alignment

If you emails adhere to strict SPF, you can set to "Strict". We recommend leaving it as relaxed To test you SPF Indentifier alignment, create an account at zerobounce.net and purchase the Email Tools Package.
select

DMARC Record

DMARC Record using Bind

DMARC Record using TinyDNS