Strengthen DKIM Signatures with DCRUP

In this final post of the DMARC series we’ll discuss the latest crypto updates to DKIM known as the DKIM Crypto Update (DCRUP) to strengthen DKIM.   Picking the Lock While DKIM has been around for many years as one of the foundations of DMARC, weaknesses in the...

The Arrival of ARC

As we mentioned in the first post of this series, with the arrival of ARC, one of the biggest blockers to DMARC adoption up to now has been the inability to use it with mailing lists or forwarders. This limitation existed because messages delivered through 3rd party...