Vendors and Providers

This page contains a non-exclusive list of potential vendors and providers to aid readers researching more about a particular topic. No endorsement is intended. No sponsorship was received. Omission of a particular vendor does not mean anything. This page is intended as a starting point, not a definitive directory.

Email Validation (Chapter 6)

• Email Hippo https://emailhippo.com/

• Kickbox https://kickbox.com/

There are many other email validation providers. As discussed in the book, readers are strongly advised to carry out proper due-diligence before selecting a vendor in this space.

IP Certification (Chapter 8)

• Certified Senders Alliance https://certified-senders.org/

• SuretyMail https://www.isipp.com/

• Validity https://www.validity.com/

Useful Block Lists and filters contact points (Chapters 5 and 8)

• The Spamhaus Project https://spamhaus.org/

• Invaluement https://www.invaluement.com/

• NoSolicitado https://www.nosolicitado.org/ (South America mostly)

• Proofpoint https://ipcheck.proofpoint.com/

• Barracuda https://www.barracudacentral.org/rbl

• Cloudmark Sender Intelligence https://csi.cloudmark.com/en/reset

• Broadcom (formerally Symantec)   https://ipremoval.sms.symantec.com/

• McAfee SmartFilter and WebWasher  https://sitelookup.mcafee.com/

• Webroot BrightCloud https://brightcloud.com/tools/url-ip-lookup.php

• SURBL https://surbl.org/

Domain and IP Reputation (Chapter 8)

• Talos Intelligence Project https://talosintelligence.com/

• IBM X-Force Exchange https://exchange.xforce.ibmcloud.com/

DMARC report dashboards and implementation consultants (Chapter 11)

• EasyDMARC https://easydmarc.com

• OnDMARC (by Red Sift) https://redsift.com/pulse-platform/ondmarc

• Valimail https://www.valimail.com/

Reputation Monitoring (Chapters 5 and 8)

• Postmastery https://www.postmastery.com/
• Validity https://www.validity.com/
• Inbox Monster https://inboxmonster.com/
• MxToolbox https://mxtoolbox.com/

Automated monitoring is very useful, but having a core understanding of your email program is essential. Do not purely rely on automated monitoring.

Deliverability consultants

• Word to the Wise https://wordtothewise.com/
• Postmastery https://www.postmastery.com/

Email checkers (for “spammyness”)

If you want to know why this list category will always be blank, read the book!