Email that never silently lands in spam.
LitInboxes is an email infrastructure monitoring tool we designed, built, and operate. It continuously scans authentication protocols, tracks deliverability, and alerts teams the moment a DNS change threatens their sending reputation.
- unexpected inbox drops
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0
unexpected inbox drops
- authentication & DNS monitoring
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24/7
authentication & DNS monitoring
- watched continuously
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SPF · DKIM · DMARC
watched continuously
The failure you only discover from your customers
Email deliverability fails silently. A DNS record edited during an unrelated migration, an expired DKIM key, a DMARC policy someone tightened without telling the email team, nothing errors, nothing alerts. Sends keep leaving the server. They just stop arriving.
Organizations were losing password resets, order confirmations, and critical notifications to spam folders, and finding out weeks later, from confused customers, after sender reputation had already taken the damage.
By the time deliverability problems become visible, they're expensive: blocklist recovery and reputation repair take far longer than the misconfiguration that caused them took to happen.
Monitoring that reads email infrastructure like an engineer
We built LitInboxes to watch the entire authentication chain the way a deliverability engineer would, continuously. It scans SPF, DKIM, and DMARC records, validates alignment between them, and tracks deliverability signals across sending domains.
The monitor doesn't just detect that a record changed, it evaluates what the change means: whether the new state breaks alignment, weakens policy, or puts sends at risk. Teams get an alert that says what broke, what it affects, and what to change back.
Because it watches configuration state rather than bounce statistics, it catches problems at the DNS change, before mailbox providers do, and before reputation damage starts compounding.
- Full authentication-chain scanning
- SPF, DKIM, and DMARC records validated continuously, including alignment between them, not just record existence.
- Change-aware alerting
- Alerts explain the impact of a DNS change, not just that one happened.
- Deliverability tracking
- Sending health tracked over time per domain, so drift shows up as a trend, not a surprise.
- Ahead-of-provider detection
- Misconfigurations caught at the DNS level, before mailbox providers penalize the sender.
Zero unexpected inbox drops
Teams running on LitInboxes have had zero unexpected inbox drops. Real-time alerts catch configuration changes before they affect sending reputation, turning what used to be a weeks-later customer complaint into a same-hour fix.
Email went back to being infrastructure: something that works, is watched, and pages someone when it's about to stop.
Frequently asked questions
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Usually a silent infrastructure change: an SPF record broken during a DNS edit, an expired or rotated DKIM key, or a DMARC policy misalignment. Nothing visibly errors, mail keeps sending, providers quietly start filtering it. LitInboxes exists to catch exactly these changes at the moment they happen.
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They're the three DNS-based protocols that prove an email is legitimately from your domain. SPF lists which servers may send for you, DKIM cryptographically signs each message, and DMARC tells receivers what to do when either check fails. If any of the three is broken or misaligned, deliverability suffers, often without any error you can see.
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Manual checks are snapshots; deliverability breaks between them. LitInboxes monitors the full authentication chain continuously and alerts on the change itself, including what it affects and how to fix it, instead of waiting for bounce rates to reveal a problem weeks later.
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Yes, that's the core design. Because LitInboxes watches configuration state rather than delivery statistics, it detects a breaking change at the DNS level, before mailbox providers start filtering and before reputation damage compounds. Teams using it report zero unexpected inbox drops.
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Any team whose product depends on email arriving: transactional sends, notifications, resets, alerts. It's built and operated by HalTuring, the engineering lab that also designs custom email infrastructure and deliverability recovery for client organizations.
Is your email one DNS edit away from spam?
We build and operate the systems behind reliable email: monitoring, authentication, reputation recovery. Book a call and we'll audit your sending infrastructure's blind spots.