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Inbox Lighthouse is a specialized consultancy focused entirely on email deliverability, sender reputation, and complex platform migrations. If your emails are landing in spam, or you need to migrate from Mailchimp to Klaviyo without losing reputation, our team of technical experts will guide you. We handle SPF, DKIM, DMARC, IP warming, and blacklist removal.
Proven Case Studies
Inbox Rescue for SaaS Platform
Postmark
Result / OutcomeRecovered sender score from 40 to 98, raising open rates to 38%.
We were experiencing massive deliverability issues with 50% of our transactional emails landing in spam. Inbox Lighthouse diagnosed our SPF/DKIM/DMARC configurations and set up an IP warming strategy. Open rates are back to 40%!
- David Sterling, CTO at SecureSaaSFormat: projectPlatform: Postmark
Contact Inbox Lighthouse
Submit an inquiry and the team will get in touch with you directly to discuss details.
Full-service Klaviyo Master Partner for eCommerce & DTC brands
Tools:Klaviyo•Omnisend
Budget: $3,000/mo
May 29, 2026
Smooth platform migration
Migrated our 150k list from Mailchimp to Klaviyo. Inbox Lighthouse managed the entire transition without a single drop in revenue or sender reputation. Outstanding service.
- Chloe Bennett, Head of Growth at Finery UKFormat: projectPlatform: Klaviyo
May 29, 2026
Excellent technical team
Extremely knowledgeable about email authentication, DMARC alignment, and deliverability monitoring. Very technical and structured approach.
- Amir Patel, Product Manager at Scribe AnalyticsFormat: consultationPlatform: Postmark
May 29, 2026
Deliverability fixed in 30 days
Highly recommend Inbox Lighthouse. They got our cold outreach and promotional domains out of the Gmail spam filter in under a month.
- Lucy Hale, Founder at Glow CosmeticsFormat: projectPlatform: Brevo
