Get free DMARC visibility with Valimail Authenticate and Microsoft Office 365

This blog post is part of the Microsoft Intelligent Security Association guest blog series. Learn more about MISA. Phishing and email spoofing not only erode brand trust but also leave recipients vulnerable to financial loss and serious invasions of privacy. These tactics have been around for...

BIMI: A Visual Take on Email Authentication and Security

There is a saying that goes something like, "Do not judge a book by its cover." Yet, we all know we can not help but do just that - especially when it comes to online security. Logos play a significant role in whether or not we open an email and how we assess the importance of each message. Brand...

[SECURITY] Fedora 33 Update: opendmarc-1.4.1.1-3.fc33

OpenDMARC Domain-based Message Authentication, Reporting & Conformance provides an open source library that implements the DMARC verification service plus a milter-based filter application that can plug in to any milter-aware MTA, including sendmail, Postfix, or any other MTA that supports the...

[SECURITY] Fedora 34 Update: opendmarc-1.4.1.1-3.fc34

OpenDMARC Domain-based Message Authentication, Reporting & Conformance provides an open source library that implements the DMARC verification service plus a milter-based filter application that can plug in to any milter-aware MTA, including sendmail, Postfix, or any other MTA that supports the...

DMARC: The First Line of Defense Against Ransomware

There has been a lot of buzz in the industry about ransomware lately. Almost every other day, it's making headlines. With businesses across the globe holding their breath, scared they might fall victim to the next major ransomware attack, it is now time to take action. The FBI IC3 report of 2020...

Rapid7 Releases New Industry Cyber-Exposure Report (ICER): Deutsche Börse Prime Standard

Today, Rapid7 released the fourth in our Industry Cyber-Exposure Report ICER series. For those of you who have been following our research over the past few years, you may immediately suspect us of unloading another 100+ page tome of internet-based findings around the internet—but not so fast!...

DEBIAN-CVE-2021-34555

OpenDMARC 1.4.1 and 1.4.1.1 allows remote attackers to cause a denial of service NULL pointer dereference and application crash via a multi-value From header field...

CVE-2021-34555

OpenDMARC 1.4.1 and 1.4.1.1 allows remote attackers to cause a denial of service NULL pointer dereference and application crash via a multi-value From header field...

Email spoofing: how attackers impersonate legitimate senders

Introduction In a nutshell, email spoofing is the creation of fake emails that seem legitimate. This article analyzes the spoofing of email addresses through changing the From header, which provides information about the senders name and address. SMTP Simple Mail Transfer Protocol, the main email...

Fedora: Security Advisory for opendmarc (FEDORA-2021-1ec3c5ed63)

The remote host is missing an update for the Copyright C 2021 Greenbone Networks GmbH Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-or-later This program is free software; you can...

Privilege Escalation

OpenDMARC is vulnerable to privilege escaltion. The vulnerability exists due to pypolicyd-spf allowing an attacker to bypass SPF and DMARC authentication in situations where the HELO field is inconsistent with the MAIL FROM field...

Can Your Business Email Be Spoofed? Check Your Domain Security Now!

Are you aware of how secure your domain is? In most organizations, there is an assumption that their domains are secure and within a few months, but the truth soon dawns on them that it isn't. Spotting someone spoofing your domain name is one way to determine if your security is unsatisfactory -...

[SECURITY] Fedora 34 Update: opendmarc-1.4.1-1.fc34

OpenDMARC Domain-based Message Authentication, Reporting & Conformance provides an open source library that implements the DMARC verification service plus a milter-based filter application that can plug in to any milter-aware MTA, including sendmail, Postfix, or any other MTA that suppor ts the...

[SECURITY] Fedora 33 Update: opendmarc-1.4.1-1.fc33

OpenDMARC Domain-based Message Authentication, Reporting & Conformance provides an open source library that implements the DMARC verification service plus a milter-based filter application that can plug in to any milter-aware MTA, including sendmail, Postfix, or any other MTA that suppor ts the...

[ASA-202105-13] opendmarc: multiple issues

Arch Linux Security Advisory ASA-202105-13 ========================================== Severity: Medium Date : 2021-05-19 CVE-ID : CVE-2019-20790 CVE-2020-12272 Package : opendmarc Type : multiple issues Remote : Yes Link : https://security.archlinux.org/AVG-1375 Summary ======= The package...

UPchieve: No Valid SPF Records/don't have DMARC record

I have already reported this isssue through email and the company has accepted my report. Hiii, There is any issue No valid SPF Records on https://app.upchieve.org Desciprition : There is a email spoofing vulnerability.Email spoofing is the forgery of an email header so that the message appears t...

Sifchain: No Valid SPF Records/don't have DMARC record

Hiii, There is any issue No valid SPF Records on https://sifchain.finance/ Desciprition : There is a email spoofing vulnerability.Email spoofing is the forgery of an email header so that the message appears to have originated from someone or somewhere other than the actual source. Email spoofing ...

[SECURITY] Fedora 34 Update: opendmarc-1.4.0-1.fc34

OpenDMARC Domain-based Message Authentication, Reporting & Conformance provides an open source library that implements the DMARC verification service plus a milter-based filter application that can plug in to any milter-aware MTA, including sendmail, Postfix, or any other MTA that suppor ts the...

Fedora: Security Advisory for opendmarc (FEDORA-2021-c1b846164e)

The remote host is missing an update for the Copyright C 2021 Greenbone Networks GmbH Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-or-later This program is free software; you can...

MCUboot: DMARC and DNS Records not found on mcuboot.com

Found no DMARC and DNS record on mcuboot.com . I am also able to send an email to me on your behalf . The mail sent didnot even landed in spam folder which could make the users believe on the attacker as a legitimate person or authority. Any attacker could do so by using any fake mailer .For exmp...