Tim Draegen, ředitel společnočnosti Dmarcian.com představil technologii DMARC a její důležitost pro ochranu značky a domény. Představil její použití jako nástroj pro zabezpečení, zlepšení doručitelnosti, ale především jako nástroj, který může pomoci dostat se do souladu s GDPR.

1. How to Protect Your Brand
and Domain with DMARC
23 August 2017
Tim Draegen, CEO
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2. Why DMARC?
For any given email:
Real or Not Real?
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3. Hard Problem:
Make everyone an expert?
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4. Hard Problem:
Real or Not Real for billions every day.. or just 1.
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5. Tipping the scales just a little bit..
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Real
Not
Real
..makes everything better.

6. 6
DMARC Makes Email Easy to Identify

7. Domain-based, Message, Authentication,
Reporting and Conformance
Overlay that:
● Builds on existing email authentication technology (SPF and DKIM),
● Provides feedback data to Domain Owners,
● Allows for blocking of unauthorized email.
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8. How Does DMARC Work?
DMARC creates a link between a domain and a piece of email.
somebody@the_domain.com
... and is available to all domain owners. Today. Free.
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9. Creating link between email and domain:
..is called email authentication. Two forms:
SPF (Sender Policy Framework)
➢ Publish a list of authorized servers. Receivers consult list
when processing incoming email.
➢ “path based”
DKIM (DomainKeys Identified Mail)
➢ Attach digital fingerprints/signatures to email. Receivers
verify if email came from domain.
➢ “signature based” 9

10. How Does DMARC Work?
DMARC tells senders how to
configure SPF and DKIM..
..which lets receivers perform
the same simple DMARC
check for all incoming email.
Consistency!
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11. So what?
When all email from a
domain is compliant with
DMARC, receivers can be
told to block Not Real
email.
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the_domain.com
X
X
X

12. Benefits of DMARC
When email is easy to identify, nice things happen:
Improved Security
➕ Simplified Delivery
➕ Consistent Compliance
Brand protection & Trust
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13. Simplified Email Management
DMARC feedback provides a comprehensive picture of everyone sending using
your domains. Your own infrastructure, vendors, partners, abusers, everyone.
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14. Simplified Email Management
All domains using DMARC means you can put in place consistent practices
across all your legitimate senders. Consistent brand policies across all email.
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15. Simplified Email Management
This sort of visibility used to be incredibly expensive. DMARC is free.
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16. GDPR and DMARC
● The ~bad: DMARC forensic reports can contain sensitive data. Handling of
sensitive data introduces GDPR into your operations. But you don’t need
forensic reports for DMARC to be useful!
● Email can be very personalized. That personalization now comes with a
GDPR cost. All vendors need to be compliant with GDPR, or their non-
compliance becomes your problem.
● The good: You can easily identify who is sending on your behalf using
DMARC. Each sender can then be vetted for GDPR implications.
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