How to Implement DMARC/DKIM/SPF to Stop Email Spoofing/Phishing: The Definiti...Gangcai Lin
This article aims to provide a complete guide to implementing the SPF, DKIM, and DMARC trio for your organization, and suggest the best practices for doing so. It is written in hopes that this will clear up confusion about what steps to take to achieve an effective DMARC deployment to secure business email.
Target audience: brand owners, domain owners, domain administrators, IT administrators, etc. and anyone who wants to prevent attackers from sending malicious emails using their domains.
If you are eager to find out if your domain is SPF/DKIM/DMARC-compliant, send an email from that domain with any subject/content to check@dmarcly.com. You will get a report on SPF/DKIM/DMARC shortly in your inbox.
For more information, go to: https://dmarcly.com
In this installment of the Men & Mice webinar series, Mr. Carsten Strotmann will talk about the role that DNS plays in fighting malware and spam.
The discussion will dig into DNS blacklists, domain reputation, Response Policy Zones and how the new TLDs have changed the game.
The ability to easily identify a legit email message is changing the industry for the better.
Since 2012, dmarcian has been helping organizations of every size across the globe to deploy DMARC.
How to Implement DMARC/DKIM/SPF to Stop Email Spoofing/Phishing: The Definiti...Gangcai Lin
This article aims to provide a complete guide to implementing the SPF, DKIM, and DMARC trio for your organization, and suggest the best practices for doing so. It is written in hopes that this will clear up confusion about what steps to take to achieve an effective DMARC deployment to secure business email.
Target audience: brand owners, domain owners, domain administrators, IT administrators, etc. and anyone who wants to prevent attackers from sending malicious emails using their domains.
If you are eager to find out if your domain is SPF/DKIM/DMARC-compliant, send an email from that domain with any subject/content to check@dmarcly.com. You will get a report on SPF/DKIM/DMARC shortly in your inbox.
For more information, go to: https://dmarcly.com
In this installment of the Men & Mice webinar series, Mr. Carsten Strotmann will talk about the role that DNS plays in fighting malware and spam.
The discussion will dig into DNS blacklists, domain reputation, Response Policy Zones and how the new TLDs have changed the game.
The ability to easily identify a legit email message is changing the industry for the better.
Since 2012, dmarcian has been helping organizations of every size across the globe to deploy DMARC.
An Introduction To The DMARC SMTP Validation RequirementsGabriella Davis
Presented at Social Connections 13 in Philadelphia April 2018.
DMARC is a SMTP security standard being increasingly requested by customers to protect against email spoofing. It uses a combination of SPF (Sender Policy Framework) records and DKIM (DomainKeys Identified Mail). Using DMARC you would publicly specify how your outbound mail is sent and the receiving server would verify that the mail it receives matches your requirements. In this session we’ll discuss DMARC deployments and what to do if your mail server (like IBM Domino or SmartCloud) does not yet support DKIM?
IPsec provides the capability to secure communications across a LAN, across private and public WANs, and across the Internet. Examples of its use include:
Secure branch office connectivity over the Internet
Secure remote access over the Internet
Establishing extranet and intranet connectivity with partners
Enhancing electronic commerce security
In this presentation, I am trying to explain why and how email security should be implemented.
> Intro to Email
> Basic steps in emailing
> Intro to Email Security
> Common email threats
> How emailsecurity works
> Security requirements (CIA)
> Secure transmission of email: PGP
> PGP: Operation description (All 5 services)
> Secure transmission of email: S/MIME (With its functions)
This presentation was presented by me in the final year of my M.Sc. in Computer science.
Hope you like this presentation. Thank you!
With the dominance of Mobile Apps, Single Page Apps for the Web, and Micro-Services, we are all building more APIs than ever before. Like many other developers, I had struggled with finding the right mix of security and simplicity for securing APIs. Some standards from the IETF have made it possible to accomplish both. Let me show you how to utilize existing libraries to lock down you API without writing a ton of code.
In this tutorial, you will learn how to write a secure API with future proof security utilizing JOSE. JOSE is a collection of complimentary standards: JWT, JWE, JWS, JWA, and JWK. JOSE is used by OAuth, OpenID, and others to secure communications between APIs and consumers. Now you can use it to secure your API.
Electronic mail, most commonly called email or e-mail since around 1993
E-mail is one of the most widely used forms of communication today.
E-mail is faster and cheaper than traditional postal mail, but at least when you seal that envelope and stick a stamp on it, you can have some confidence that only the intended recipient will open it.
With e-mail, however, your message could be intercepted midstream, and you might never realize it. You have to take steps to secure and protect your e-mail messages.
http://phpexecutor.com
Nuspire Networks Webinar Slideshow on Enterprise Email Security and the evolving threat landscape.
Protect your Enterprise with Nuspire's Managed Enterprise Email Security.
www.nuspire.com
This OTP presentation explains a whole overview of OTP, Method of Generating, Algorithm, Security and Performance Analysis, Method of Delivering, and N-Factor Authentication.
An Introduction To The DMARC SMTP Validation RequirementsGabriella Davis
Presented at Social Connections 13 in Philadelphia April 2018.
DMARC is a SMTP security standard being increasingly requested by customers to protect against email spoofing. It uses a combination of SPF (Sender Policy Framework) records and DKIM (DomainKeys Identified Mail). Using DMARC you would publicly specify how your outbound mail is sent and the receiving server would verify that the mail it receives matches your requirements. In this session we’ll discuss DMARC deployments and what to do if your mail server (like IBM Domino or SmartCloud) does not yet support DKIM?
IPsec provides the capability to secure communications across a LAN, across private and public WANs, and across the Internet. Examples of its use include:
Secure branch office connectivity over the Internet
Secure remote access over the Internet
Establishing extranet and intranet connectivity with partners
Enhancing electronic commerce security
In this presentation, I am trying to explain why and how email security should be implemented.
> Intro to Email
> Basic steps in emailing
> Intro to Email Security
> Common email threats
> How emailsecurity works
> Security requirements (CIA)
> Secure transmission of email: PGP
> PGP: Operation description (All 5 services)
> Secure transmission of email: S/MIME (With its functions)
This presentation was presented by me in the final year of my M.Sc. in Computer science.
Hope you like this presentation. Thank you!
With the dominance of Mobile Apps, Single Page Apps for the Web, and Micro-Services, we are all building more APIs than ever before. Like many other developers, I had struggled with finding the right mix of security and simplicity for securing APIs. Some standards from the IETF have made it possible to accomplish both. Let me show you how to utilize existing libraries to lock down you API without writing a ton of code.
In this tutorial, you will learn how to write a secure API with future proof security utilizing JOSE. JOSE is a collection of complimentary standards: JWT, JWE, JWS, JWA, and JWK. JOSE is used by OAuth, OpenID, and others to secure communications between APIs and consumers. Now you can use it to secure your API.
Electronic mail, most commonly called email or e-mail since around 1993
E-mail is one of the most widely used forms of communication today.
E-mail is faster and cheaper than traditional postal mail, but at least when you seal that envelope and stick a stamp on it, you can have some confidence that only the intended recipient will open it.
With e-mail, however, your message could be intercepted midstream, and you might never realize it. You have to take steps to secure and protect your e-mail messages.
http://phpexecutor.com
Nuspire Networks Webinar Slideshow on Enterprise Email Security and the evolving threat landscape.
Protect your Enterprise with Nuspire's Managed Enterprise Email Security.
www.nuspire.com
This OTP presentation explains a whole overview of OTP, Method of Generating, Algorithm, Security and Performance Analysis, Method of Delivering, and N-Factor Authentication.
Each and every one of us uses it.. E-mail. But how well do we monitor this crucial channel? How can we avoid SPAM being sent from our domains? If you own a domain that sends email, the most effective action you can take is to set up DKIM, SPF and DMARC. As more, and more domains implement authentication, phishers are forced to target domains that are not yet protected. Hopefully not your domains? In this presentation we will look at the three protocols.
Each and every one of us uses it.. E-mail. But how well do we monitor this crucial channel? How can we avoid SPAM being sent from our domains? If you own a domain that sends email, the most effective action you can take is to set up DKIM, SPF and DMARC. As more, and more domains implement authentication, phishers are forced to target domains that are not yet protected. Hopefully not your domains? In this presentation we will look at the three protocols.
Alumni meet-up Mediatechnologie - Van zolder kamer naar...Jeffrey Cafferata
Aan de hand van thema's als:
- Van zolderkamer naar ....? (werkomgeving)
- Waar zijn mijn opdrachtgevers? (netwerken, wie, waar, wanneer)
- Wie ben ik , en wat voeg ik toe ? (positioneren)
- Huidige situatie (fase ontwikkeling bedrijf)
Hoe maak je een veilig wachtwoord? Een compromis tussen veilig en gemakkelijk. De beste, veiligste wachtwoorden zijn door gewone mensen niet te onthouden. Een goed te onthouden wachtwoord is te makkelijk en dus zo te kraken. Óf simpelweg te raden.
De praktijk
Het is niet slim om overal hetzelfde wachtwoord voor te gebruiken. Veel verschillende wachtwoorden onthouden is moeilijk.
20. 20 / 28
• DMARC
Tag name Doel Voorbeeld
v Protocol versie v=DMARC1
pct % berichten filteren op P pct=25
ruf Reporting URI van uitgebreiderapporten ruf=dmarc@jcid.nl
rua Reporting URI van algemene rapporten rua=dmarc@jcid.nl
p Beleid voor domein p=quarantaine
sp Beleid voor subdomeinen sp=reject
adkim Afstemming-modus voor DKIM adkim=strict
aspf Afstemming-modus voor SPF aspf=relaxed