SPF Archives - dmarcian

Technical Guidance

SPF Management Challenges

The email world was a much different place back in 1997 when the idea of SPF was taking shape. It went mostly unnoticed when first publicly mentioned around 2000, but fast-forward 20 years, and it is now one of the most widespread forms of email authentication in use, along with DKIM and DMARC. Ensuring the…

John Bowers23 March 2020

Deployment Technical Guidance

How to Create and Add an SPF Record

In this article we explain: What an SPF Record is How to Add an SPF Record How to Create an SPF Record Already have an SPF Record but not sure if its setup correctly? Use our free SPF Surveyor to perform an SPF Check.An SPF record or SPF TXT record is a record that is part…

Vaughn Talbert24 February 2020

Email Technology Technical Guidance

Why SPF is so funky in today’s modern world

SPF (Sender Policy Framework) has been around for a long time and enjoys a rich history reaching back to 1997, with the SPF Project itself starting in June 2003. (a timeline history of SPF can be found here). However, there are some challenges with SPF's feedback and it is often misunderstood. We take a look at these…

Vaughn Talbert21 March 2019

Email Technology

The History of SPF

Dec 14, 1997 Jim Miller sends Paul Vixie an email with his idea on verifying SMTP MAIL FROM address from means of outbound-smtp MX dns records. Note: This event and the date are not confirmed by public records and are based solely on information provided by Paul Vixie. Mar 27, 2000 – Public mention of the idea to create 'MS'…

Vaughn Talbert18 March 2019

Deployment dmarcian Platform Email Technology

Our SPF Survey tool can show you how much traffic is coming from your listed entries

To get to the tool, log in and navigate to the Domain Overview. Click on the SPF cell for a domain that has volume, and then click ‘Record Details’. In the resulting view, select ‘View TMI’. The reloaded view of the SPF record details integrates DMARC data to show you which of your SPF record…

Vaughn Talbert14 February 2019

Deployment Technical Guidance

Too many DNS lookups?

People sometimes run into the "too many DNS lookups" error when rolling out and managing SPF. It doesn't help that there is a lot of bad guidance on the Internet. This article describes how to fix this issue. (more…)

dmarcian4 August 2016

dmarcian Platform Technical Guidance

SPF-Identified Servers – How and Why

To turn DMARC into something useful to people, dmarcian processes DMARC data using a big pile of rules. These rules identify sources of email, and dmarcian presents users with DMARC compliance information based on email source. One identified source of email is called "SPF-Identified Servers", and dmarcian users are often curious as to how data ends up in…

dmarcian5 April 2016

Deployment Email Technology Technical Guidance

SMTP Relay for Third Party Sender DMARC Compliance

How can you eventually move to a p=reject policy when third parties are unable to send email properly on your behalf? In many cases, a DMARC compliant SMTP relay server can be used to do the trick. In this article, we’ll explore some of the facets of sending DMARC compliant email from third parties, what…

dmarcian19 January 2016