IdeaRadar
Email deliverability tester for business mailing lists behind corporate filters
See if your B2B emails reach company inboxes, not just Gmail
Score 8.0/10 · Build now
For businesses
29 November 2025
Proof at a glance
8.0 out of 10. Score 8.0/10 · Build now
The problem
Marketing managers at B2B firms who send large outreach lists (50,000–200,000 contacts) find many messages never reach recipients because corporate email gateways block or junk them. They see open rates crash and cannot tell if the problem is their content, domain reputation, or the recipient's gateway. This causes lost pipeline, wasted spend, and the risk of burning a list that took months to build.
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