Kickbox: Product updates, Customer stories, and Insights | 2026 Cuspera

Kickbox helped Commvault improve their email strategy. Commvault had problems with invalid signups and poor email deliverability. They used Kickbox’s automated email verification API in their web for...ms and event lists. This reduced email bounce rates and made trial signups more efficient. Commvault saw better data quality, lower costs, and higher customer engagement.
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Kickbox helped Acordo Certo reduce email bounce rates by about 10%. The company used Kickbox’s API to verify emails at signup, filtering out 6% of risky or undeliverable addresses. Gmail spam rates s...tayed below 0.3%. Inbox placement and open rates improved. Acordo Certo now has a more reliable and scalable email program.
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Kickbox helped InvoiceCloud reach a 98.7% email deliverability rate. InvoiceCloud used Kickbox to clean old email lists and verify new addresses in real time. They integrated Kickbox with Marketo and... Salesforce for better data quality. Bounce rates dropped by 35%. Customer engagement improved with more reliable emails. Kickbox made InvoiceCloud's marketing more effective and secure.
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Kickbox helped IGN fix email deliverability problems. IGN had high bounce rates and low engagement as their subscriber list grew. Kickbox did a full audit, improved DMARC, DKIM, and SPF, and cleaned ...IGN's email lists. IGN saw a 56% increase in open rates and a 30% increase in click-through rates. Their email marketing now reaches more real subscribers and gets better results.
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Kickbox's email verification API helped Reddit cut false positive bounces and improve email deliverability. Reddit used Kickbox to verify emails in real time after initial bounces, especially for use...r onboarding and event participation. In three months, Reddit identified and blocked over 12 million undeliverable emails. This led to lower bounce rates, better sender reputation, and higher user engagement. The solution supports reliable notifications and community updates for millions of users.
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Kickbox's real-time email verification API helped Notion improve marketing precision. Notion used Kickbox to quickly verify new customer email addresses and identify free versus non-free domains. Thi...s allowed Notion to segment users better and focus marketing on high-value segments. The solution made the verification process simple and efficient. Notion gained better customer insights and improved marketing results.
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