With deep expertise in internet security and resilient infrastructure, the Valimail team regularly contributes to standards and threat detection communities — driving today’s email authentication policies and tomorrow’s cybersecurity advancements.

We have a corporate commitment to lifting up the messaging industry as a whole and working collaboratively with partners throughout the ecosystem to restore trust to email.

We participate in several organizations working to make a difference.

We write and maintain open source code used by the largest mailbox providers (like Oath/Yahoo!) and make our contributions available to all, fixing issues in an accessible, scalable, global way.

We contribute to the protocols that continue to advance email and make it better for everyone.

Organizational Involvement and Leadership Positions

Messaging Malware Mobile Anti-Abuse Working Group

Technical Committee Co-Chair

Collaboration Committee Co-Chair

M3AAWG is where the industry comes together to work against botnets, malware, spam, viruses, DoS attacks and other online exploitation.

Authindicators Working Group

Chair

AuthIndicators Working Group works to create a richer, more trustworthy inbox experience for all email users worldwide while increasing the use of authentication to reduce email fraud and is the creator of the Brand Indicators for Message Identification (BIMI) standard.

Anti-Phishing Working Group

Contributor

APWG is an international coalition unifying the global response to cybercrime across industry, government and law-enforcement sectors, and NGO communities.

Internet Society

Member

ISOC provides an organizational home and financial support for the Internet standards evolution process.

Internet Engineering Task Force

Contributor

IETF is the premier Internet standards body, developing open standards through open processes.

Online Trust Alliance

Member

OTA is an initiative within the Internet Society (ISOC), a global non-profit with the mission to promote the open development, evolution, and use of the Internet for the benefit of all people throughout the world.

Global Cyber Alliance

Member

GCA is an international, cross-sector effort dedicated to eradicating cyber risk and improving our connected world.

Certified Senders Alliance

Member

CSA acts as a neutral interface between mailbox providers and senders of commercial emails.

Trusted Domain Project

Contributor

The TDP produces open source products and open standards in support of improving trust in the use of domain names.

DMARC.org

Member

DMARC.org promotes the use of DMARC and related email authentication technologies to reduce fraudulent email, in a way that can be sustained at Internet scale.

Financial Services Information Sharing and Analysis Center

Member

FS-ISAC is the only industry forum for collaboration on critical security threats facing the global financial services sector.

Health Information Sharing and Analysis Center

Navigator

H-ISAC is a global, non-profit, member-driven organization offering health care stakeholders a trusted community and forum for coordinating, collaborating and sharing vital Physical and Cyber Threat Intelligence and best practices with each other.

Open Source Contributions

View the full Valimail Repository.

ARC Test Suite

Written by Valimail, the ARC Test Suite is an informal schema for the open source test suites for the Authenticated Received Chain(ARC) protocol, illustrated with examples. 

OpenARC

OpenARC is a community effort to develop and maintain an open source library for producing ARC-aware applications, and a "milter"-based filter for providing ARC service. Valimail has contributed, tested, and managed the completion of this project.

Mail::DKIM

Valimail contributed code that supports ARC within Mail::DKIM, which implements the various components of the DKIM and DomainKeys message-signing and verifying standards for Internet mail. 

dkimpy

dkimpy is a Python module that implements DKIM (DomainKeys Identified Mail) email signing and verification. It also provides helper scripts for command line signing and verification. Valimail contributions support ARC functionality and bug fixes as the standard evolves.

Dalli

Dalli is high performance, pure Ruby client for accessing memcached servers and is maintained by Valimail.

DNSAdapter

DNSAdapter contains a set of useful adapter classes that present a common set of return types and errors for DNS services. This adapter layer makes it simple to swap in different DNS providers and was written by Valimail.

Postshift

Created and maintained by Valimail, Postshift provides an Amazon Redshift extension for ActiveRecord 5 (Rails 5) PostgreSQL adapter based off of the existing activerecord5-redshift-adapter.

Mailman ARC patch

Valimail built the Mailman ARC patch, which provides ARC functionality for Mailman 3. Mailman is one of the most widely deployed mailing list management software in the world. 

OpenDMARC

Valimail maintains OpenDMARC and contributes code to support the evaluation and reporting of ARC. OpenDMARC is a community effort to develop and maintain an open source package for providing DMARC report generation and policy enforcement services. 

OpenDKIM

OpenDKIM is maintained by Valimail. We contribute code to support the evaluation and reporting of ARC to this TDP software that supports 100's of millions of mailboxes.

devise-secure_password

Valimail wrote this password policy enforcement extension for devise-gem, which is a flexible authentication solution for Rails based on Warden. 

Coppertone

Coppertone, written and maintained by Valimail, provides a Sender Policy Framework (SPF) toolkit for Ruby and includes tools for parsing SPF DNS records, evaluating the result of SPF checks for received emails, and creating appropriate email headers from the SPF result.

Authentication Headers

Authentication Headers, written and maintained by Valimail, is a Python library for the generation of email authentication headers. The library can perform DKIM, SPF, DMARC, and ARC validation and generate and affix the corresponding headers.

Protocol Contributions

DMARC

Domain-based Message Authentication Reporting and Conformance builds on the widely deployed SPF and DKIM protocols, adding linkage to the author (“From:”) domain name, published policies for recipient handling of authentication failures, and reporting from receivers to senders, to improve and monitor protection of the domain from fraudulent email.

Valimail is deeply involved in the DMARC working group at IETF, working to broaden and strengthen its reach.

DKIM

DomainKeys Identified Mail (DKIM CRypto UPdate) working group is chartered to update DomainKeys Identified Mail (DKIM, RFC 6376) to handle more modern cryptographic algorithms and key sizes.

As shepherds of DCRUP (RFC 8301), Valimail played a key role in the publishing and availability of this standard.  We advocate for cryptographic updates that make DKIM stronger.

ARC

The Authenticated Received Chain (ARC) protocol allows Internet Mail Handlers to attach assertions of message authentication state to individual messages. As messages traverse ARC-enabled Internet Mail Handlers, additional ARC assertions can be attached to messages to form ordered sets of ARC assertions that represent authentication state along each step of message handling paths.

Valimail and Google are two of the editors of the ARC specification. Together, we are working to build ARC as a supplemental but crucial piece of the current DMARC standard.

Careers

Are you interested in joining a team that is committed to bringing trust back to email? We want to hear from you!

Awards & Accolades

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