Donate
‹ Back
Building Trust 9 June 2017

OTA SPF & DMARC Resources & Tools

The value of DMARC is growing rapidly with leading MTA vendors providing inbound checking to help protect businesses and government agencies from the threat of spear phishing and malicious email.  The following is a summary of support.  Send updates to admin@otalliance.org

OTA SPF & DMARC Text Record Validator (evaluates DNS records for selected domains)

DMARC Tools & Resources

Google Docs

Microsoft Office 365

Symantec Cloud


SPF & DKIM Tools & Reflectors

DMARC


Summary of Email Authentication Standards & Normative References (updated March 2014)

Open SPF – Established in late 2004, the SPF Council continues its efforts to make SPF a widely accepted standard on the Internet

DomainKeys Identified Mail (DKIM) – DKIM is a cryptographic signature-based email authentication standard for for validating a domain identity that is associated with a message.  The base DKIM specification has been approved by IETF as a proposed standard; answers to DKIM FAQ.  Historically, DKIM is a synthesis of earlier specifications from Yahoo! (DomainKeys) and Cisco (Identified Internet Mail).

‹ Back

Related articles

DMARC
Building Trust2 October 2017

DMARC

Domain-based Message Authentication, Reporting & Conformance Leading email service and technology providers and organizations including OTA support DMARC as an...

2015 Online Trust Audit and Honor Roll
Building Trust1 October 2017

2015 Online Trust Audit and Honor Roll

The 2015 Online Trust Audit includes a composite analysis focusing on three major categories; a company’s data protection, security and...

2014 Online Trust Audit and Honor Roll
Building Trust17 June 2014

2014 Online Trust Audit and Honor Roll

The 2014 Online Trust Audit includes a composite analysis focusing on three major categories; a company’s data protection, security and...

Join the conversation with Internet Society members around the world