BurnedInbox helps cold emailers test inbox placement, check core DNS and authentication signals, and spot setup issues before they hurt campaigns.
Simple process
Comprehensive analysis
BurnedInbox checks the core technical signals that usually decide whether a cold email setup is healthy, weak, or quietly underperforming.
SPF Record
Authorizes your sending servers
DKIM Signature
Cryptographic email authentication
DMARC Policy
Spoofing and BEC protection
47 Blacklists
Spamhaus, SURBL, Barracuda, and more
MX Records
Mail routing configuration
Reverse DNS
PTR record for your sending IP
TLS Encryption
In-transit email encryption
Sender Reputation
Trust and reputation signal analysis
Why setups fail
Cold email setups often keep sending even when something underneath is off. Missing authentication, weak reputation, bad DNS, or poor placement can quietly drag down performance before most teams notice.
Authentication gaps
Missing or weak SPF, DKIM, or DMARC can reduce trust and hurt inboxing.
Placement issues
Messages may send successfully while landing in promotions or spam.
Burned infrastructure
Old or overused inboxes can drag reply rates down fast.
Bad scaling decisions
Scaling weak infrastructure usually makes deliverability worse.
Clear output
No vague deliverability advice. Just a clear read on whether to keep sending, fix your setup, or replace weak infrastructure.
Healthy
Your setup looks stable. Keep sending and keep monitoring.
Needs attention
Your setup has weak points that may reduce deliverability.
Critical
Your infrastructure may be hurting campaigns already.
Who it's for
Agencies
Check client setups before campaigns go live.
Founders
Avoid wasting lead lists on weak infrastructure.
Outbound teams
Catch setup issues before scaling.
Operators
Use BurnedInbox as a fast first-pass diagnostic.
What does BurnedInbox check?
It checks core deliverability and infrastructure signals like inbox placement, DNS records, blacklist exposure, authentication, and reputation indicators.
Can this tell me with certainty if an inbox is burned?
Not with perfect certainty. It helps surface likely issues and risk signals that suggest whether a setup is healthy or underperforming.
Is the placement test free?
Yes. BurnedInbox is designed to be a free diagnostic tool.
What should I do if the result is critical?
That depends on the issue. Some setups can be fixed with the right DNS records and a recovery plan. Others are better replaced entirely — especially if the infrastructure is old, overused, or showing blacklist exposure.
Run a free inbox test, see where your messages land, and find out whether your infrastructure is helping you scale or quietly holding you back.
Need a faster fix? Explore WarmInboxes →When fixing is not enough
If your inboxes are underperforming, patching DNS is not always the fastest move. Sometimes the infrastructure itself is the problem — old domains, overused IPs, or inboxes that have accumulated too much damage to recover quickly.
In those cases, starting fresh with pre-warmed infrastructure is usually faster than waiting for a recovery that may never fully land.
Explore prewarmed inboxesWarmInboxes provides prewarmed inboxes and free domains for teams that need to launch faster or reset after a deliverability drop.