New ESP-friendly Email Verification Service, AlfredKnows, Has Officially Begun Testing

We’re proud to announce that our new email deliverability and compliance product is now available to a limited number of ESPs, CRMs, marketing automation providers, and sales enablement tools.

AlfredKnows is an ESP-friendly email verification service that’s designed to work in concert with BlackBox, our long-established email compliance service, to protect and improve the deliverability of ESPs and their senders. 

Specifically, by using our Risk Scoring API and new Deliverability Scoring API, participating ESPs and their clients, will be able to preemptively assess the quality of any email list, or email address, prior to deployment, virtually eliminating list-based risk to their respective mailing reputations.

Bad actors and bad email lists are wholly responsible for an ESP’s inability to deliver email to the inbox which, after all, is their core function. Traditional abuse prevention practices are incredibly costly to ESPs on nearly every level. We aim to change that.

We also intend to offer these risk and deliverability assessments at little-to-no cost to ESPs who are willing to refer their senders to the AlfredKnows email verification services. We suspect there’s also the tremendous potential for revenue sharing with our ESP partners.

Not only does AlfredKnows pick up where BlackBox left off we believe a referral model will make this comprehensive product more accessible to small to mid-sized ESPs.

At its heart, AlfredKnows was purpose-built to help ESPs turn email compliance costs and losses into a profit while providing email senders with an efficient and affordable email verification service. 

ESPs interested in participating, at no cost to their organization, can learn more by applying online at